| noncompetitive | (adjective) not involving competition or competitiveness | - |
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| nonconductive | (adjective) not able to conduct heat or electricity or sound | Synonyms: non-conducting, nonconducting |
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| nonelective | (adjective) filled by appointment rather than by election | Synonyms: non-elective, nonelected |
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| nonexplorative | (adjective) not exploratory | Synonyms: nonexploratory, unexplorative, unexploratory |
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| nonfigurative | (adjective) not representing or imitating external reality or the objects of nature | Synonyms: abstract, abstractionist, nonobjective |
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| nonimitative | (adjective) not marked by or given to imitation | - |
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| nonnative | (adjective) not being or composed of aborigines | - |
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| (adjective) of persons born in another area or country than that lived in | Synonyms: foreign-born |
| (adjective) of plants or animals originating in a part of the world other than where they are growing | - |
| nonnegative | (adjective) either positive or zero | - |
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| nonnormative | (adjective) not based on a norm | - |
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| nonobjective | (adjective) not representing or imitating external reality or the objects of nature | Synonyms: abstract, abstractionist, nonfigurative |
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| nonproductive | (adjective) not directly productive | - |
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| nonprognosticative | (adjective) not offering prognostications | - |
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| nonpsychoactive | (adjective) not affecting the mind or mental processes | - |
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| nonradioactive | (adjective) not radioactive | - |
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| nonreflective | (adjective) not capable of physical reflection | Synonyms: nonreflecting |
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| nonrepetitive | (adjective) marked by the absence of repetition | - |
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| nonrepresentative | (adjective) not standing for something else | Synonyms: unsymbolic |
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| nonrestrictive | (adjective) not limiting the reference of a modified word or phrase | - |
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| nonsensitive | (adjective) never having had security classification | Synonyms: unrestricted |
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| nonsubjective | (adjective) undistorted by emotion or personal bias; based on observable phenomena | Synonyms: objective |
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| nonsuppurative | (adjective) not suppurative | - |
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| normative | (adjective) pertaining to giving directives or rules | Synonyms: prescriptive |
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| (adjective) relating to or dealing with norms | - |
| nutritive | (adjective) of or providing nourishment | Synonyms: alimental, alimentary, nourishing, nutrient, nutritious |
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| objective | (adjective) undistorted by emotion or personal bias; based on observable phenomena | Synonyms: nonsubjective |
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| (adjective) serving as or indicating the object of a verb or of certain prepositions and used for certain other purposes | Synonyms: accusative |
| (adjective) belonging to immediate experience of actual things or events | - |
| (adjective) emphasizing or expressing things as perceived without distortion of personal feelings or interpretation | - |
| obstructive | (adjective) preventing movement | Synonyms: clogging, hindering, impeding |
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| olfactive | (adjective) of or relating to olfaction | Synonyms: olfactory |
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| operative | (adjective) being in force or having or exerting force | - |
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| (adjective) relating to or requiring or amenable to treatment by surgery especially as opposed to medicine | Synonyms: surgical |
| (adjective) (of e.g. a machine) performing or capable of performing | Synonyms: functional, running, working |
| (adjective) effective; producing a desired effect | - |
| opinionative | (adjective) obstinate in your opinions | Synonyms: opinionated, self-opinionated |
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| oppositive | (adjective) expressing antithesis or opposition | Synonyms: adversative |
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| optative | (adjective) relating to a mood of verbs in some languages | - |
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| (adjective) indicating an option or wish | - |
| originative | (adjective) having the ability or power to create | Synonyms: creative |
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| (adjective) containing seeds of later development | Synonyms: germinal, seminal |
| overactive | (adjective) more active than normal | Synonyms: hyperactive |
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| overprotective | (adjective) overly protective | - |
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| oversensitive | (adjective) unduly sensitive or thin-skinned | - |
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| oxidative | (adjective) taking place in the presence of oxygen | - |
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| palliative | (adjective) moderating pain or sorrow by making it easier to bear | Synonyms: alleviative, alleviatory, lenitive, mitigative, mitigatory |
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| partitive | (adjective) indicating or characterized by or serving to create partition or division into parts | - |
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| (adjective) (Romance languages) relating to or denoting a part of a whole or a quantity that is less than the whole | - |
| (adjective) serving to separate or divide into parts | Synonyms: separative |
| pejorative | (adjective) expressing disapproval | Synonyms: dislogistic, dyslogistic |
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| penetrative | (adjective) having or demonstrating ability to recognize or draw fine distinctions | Synonyms: acute, discriminating, incisive, keen, knifelike, penetrating, piercing, sharp |
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| (adjective) tending to penetrate; having the power of entering or piercing | Synonyms: penetrating |
| perceptive | (adjective) having the ability to perceive or understand; keen in discernment | - |
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| (adjective) of or relating to perception | - |
| permeative | (adjective) spreading or spread throughout | Synonyms: permeant, permeating, pervasive |
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| photoconductive | (adjective) of or relating to photoconductivity | - |
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| photosensitive | (adjective) sensitive to visible light | Synonyms: light-sensitive |
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| placative | (adjective) intended to pacify by acceding to demands or granting concessions | Synonyms: appeasing, placating, placatory |
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| plaintive | (adjective) expressing sorrow | Synonyms: mournful |
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| positive | (adjective) characterized by or displaying affirmation or acceptance or certainty etc. | - |
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| (adjective) indicating existence or presence of a suspected condition or pathogen | Synonyms: confirming |
| (adjective) reckoned, situated or tending in the direction which naturally or arbitrarily is taken to indicate increase or progress or onward motion | - |
| (adjective) of or relating to positivism | Synonyms: positivist, positivistic |
| (adjective) involving advantage or good | Synonyms: plus |
| (adjective) persuaded of; very sure | Synonyms: confident, convinced |
| (adjective) having a positive charge | Synonyms: electropositive, positively charged |
| (adjective) marked by excessive confidence | Synonyms: cocksure, overconfident |
| (adjective) formally laid down or imposed | Synonyms: prescribed |
| (adjective) greater than zero | - |
| (adjective) impossible to deny or disprove | Synonyms: incontrovertible, irrefutable |
| postoperative | (adjective) happening or done after a surgical operation | - |
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| postpositive | (adjective) (of a modifier) placed after another word | - |
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| precative | (adjective) expressing entreaty or supplication | Synonyms: precatory |
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| precognitive | (adjective) foreseeing the future | Synonyms: clairvoyant, second-sighted |
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| predicative | (adjective) of adjectives; relating to or occurring within the predicate of a sentence | - |
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| predictive | (adjective) of or relating to prediction; having value for making predictions | Synonyms: prognostic, prognosticative |
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| preemptive | (adjective) designed or having the power to deter or prevent an anticipated situation or occurrence | Synonyms: pre-emptive |
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| prefigurative | (adjective) indistinctly prophetic | Synonyms: adumbrative, foreshadowing |
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| preoperative | (adjective) happening or done before and in preparation for a surgical operation | - |
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| preparative | (adjective) preceding and preparing for something | Synonyms: preparatory, propaedeutic |
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| prescriptive | (adjective) pertaining to giving directives or rules | Synonyms: normative |
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| preservative | (adjective) tending or having the power to preserve | - |
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| presumptive | (adjective) affording reasonable grounds for belief or acceptance | - |
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| (adjective) having a reasonable basis for belief or acceptance | - |
| preventative | (adjective) tending to prevent or hinder | Synonyms: preventive |
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| (adjective) preventing or contributing to the prevention of disease | Synonyms: preventive, prophylactic |
| preventive | (adjective) tending to prevent or hinder | Synonyms: preventative |
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| (adjective) preventing or contributing to the prevention of disease | Synonyms: preventative, prophylactic |
| primitive | (adjective) used of preliterate or tribal or nonindustrial societies | - |
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| (adjective) of or created by one without formal training; simple or naive in style | Synonyms: naive |
| (adjective) little evolved from or characteristic of an earlier ancestral type | Synonyms: archaic |
| (adjective) belonging to an early stage of technical development; characterized by simplicity and (often) crudeness | Synonyms: crude, rude |
| proactive | (adjective) descriptive of any event or stimulus or process that has an effect on events or stimuli or processes that occur subsequently | - |
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| (adjective) (of a policy or person or action) controlling a situation by causing something to happen rather than waiting to respond to it after it happens | - |
| probative | (adjective) tending to prove a particular proposition or to persuade you of the truth of an allegation | Synonyms: probatory |
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| procreative | (adjective) producing new life or offspring | Synonyms: generative, reproductive |
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| productive | (adjective) producing or capable of producing (especially abundantly) | - |
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| (adjective) having the ability to produce or originate | Synonyms: generative |
| (adjective) marked by great fruitfulness | Synonyms: fat, fertile, rich |
| (adjective) yielding positive results | - |
| prognosticative | (adjective) of or relating to prediction; having value for making predictions | Synonyms: predictive, prognostic |
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| prohibitive | (adjective) tending to discourage (especially of prices) | Synonyms: prohibitory |
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| promotive | (adjective) tending to further or encourage | - |
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| propagative | (adjective) characterized by propagation or relating to propagation | - |
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| propitiative | (adjective) intended to reconcile or appease | Synonyms: propitiatory |
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| proprioceptive | (adjective) of or relating to proprioception | - |
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| prospective | (adjective) of or concerned with or related to the future | - |
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| protective | (adjective) intended or adapted to afford protection of some kind | - |
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| (adjective) showing care | - |
| (adjective) (usually followed by `of') solicitously caring or mindful | - |
| provocative | (adjective) serving or tending to provoke, excite, or stimulate; stimulating discussion or exciting controversy | - |
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| (adjective) intentionally arousing sexual desire | - |
| psychoactive | (adjective) affecting the mind or mood or other mental processes | Synonyms: psychotropic |
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| punitive | (adjective) inflicting punishment | Synonyms: punitory |
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| purgative | (adjective) strongly laxative | Synonyms: cathartic, evacuant |
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| putative | (adjective) purported; commonly put forth or accepted as true on inconclusive grounds | - |
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| putrefactive | (adjective) causing or promoting bacterial putrefaction | Synonyms: putrefacient |
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| qualitative | (adjective) involving distinctions based on qualities | - |
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| (adjective) relating to or involving comparisons based on qualities | - |
| quantitative | (adjective) expressible as a quantity or relating to or susceptible of measurement | - |
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| (adjective) (of verse) having a metric system based on relative duration of syllables | - |
| (adjective) relating to the measurement of quantity | - |
| radioactive | (adjective) exhibiting or caused by radioactivity | - |
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| radiosensitive | (adjective) sensitive to radiation | - |
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| ratiocinative | (adjective) based on exact thinking | - |
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| reactive | (adjective) participating readily in reactions | - |
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| (adjective) reacting to a stimulus | Synonyms: responsive |
| rebarbative | (adjective) serving or tending to repel | Synonyms: repellant, repellent |
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| receptive | (adjective) ready or willing to receive favorably | Synonyms: open |
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| (adjective) able to absorb liquid (not repellent) | - |
| (adjective) of a nerve fiber or impulse originating outside and passing toward the central nervous system | Synonyms: centripetal, sensory |
| (adjective) open to arguments, ideas, or change | - |
| reciprocative | (adjective) moving alternately backward and forward | Synonyms: reciprocatory |
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| (adjective) given or done or owed to each other | Synonyms: reciprocatory |
| recollective | (adjective) good at remembering | Synonyms: long, retentive, tenacious |
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| reconstructive | (adjective) helping to restore to good condition | Synonyms: rehabilitative |
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| recriminative | (adjective) countering one charge with another | Synonyms: recriminatory |
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| recuperative | (adjective) promoting recuperation | Synonyms: restorative |
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| redemptive | (adjective) of or relating to or resulting in redemption | Synonyms: redemptional, redemptory |
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| (adjective) bringing about salvation or redemption from sin | Synonyms: redeeming, saving |
| reductive | (adjective) characterized by or causing diminution or curtailment | - |
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| reflective | (adjective) capable of physically reflecting light or sound | - |
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| (adjective) devoted to matters of the mind | - |
| (adjective) deeply or seriously thoughtful | Synonyms: brooding, broody, contemplative, meditative, musing, pensive, pondering, ruminative |
| reformative | (adjective) tending to reform | Synonyms: reformatory |
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| refractive | (adjective) of or relating to or capable of refraction | Synonyms: refractile |
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| (adjective) capable of changing the direction (of a light or sound wave) | Synonyms: deflective |
| regulative | (adjective) restricting according to rules or principles | Synonyms: regulatory |
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| rehabilitative | (adjective) designed to accomplish rehabilitation | - |
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| (adjective) helping to restore to good condition | Synonyms: reconstructive |