| adjectival | (adjective) of or relating to or functioning as an adjective | Synonyms: adjective |
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| aestival | (adjective) (rare) of or occurring in summer | Synonyms: estival |
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| ambivalent | (adjective) uncertain or unable to decide about what course to follow | - |
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| archival | (adjective) of or relating to or contained in or serving as an archive | - |
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| bivalent | (adjective) used of homologous chromosomes associated in pairs in synapsis | Synonyms: double |
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| (adjective) having a valence of two or having two valences | Synonyms: divalent |
| bivalve | (adjective) used of mollusks having two shells (as clams etc.) | Synonyms: bivalved |
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| bivalved | (adjective) used of mollusks having two shells (as clams etc.) | Synonyms: bivalve |
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| chivalric | (adjective) characteristic of the time of chivalry and knighthood in the Middle Ages | Synonyms: knightly, mediaeval, medieval |
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| chivalrous | (adjective) being attentive to women like an ideal knight | Synonyms: gallant, knightly |
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| conjunctival | (adjective) of or relating to the conjunctiva | - |
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| divalent | (adjective) having a valence of two or having two valences | Synonyms: bivalent |
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| equivalent | (adjective) being essentially equal to something | Synonyms: tantamount |
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| estival | (adjective) (rare) of or occurring in summer | Synonyms: aestival |
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| gingival | (adjective) of or relating to the gums | - |
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| infinitival | (adjective) relating to or formed with the infinitive | - |
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| multivalent | (adjective) used of the association of three or more homologous chromosomes during the first division of meiosis | - |
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| (adjective) having more than one valence, or having a valence of 3 or higher | Synonyms: polyvalent |
| (adjective) having many values, meanings, or appeals | Synonyms: multi-valued |
| nonequivalent | (adjective) not equal or interchangeable in value, quantity, or significance | - |
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| revivalistic | (adjective) of or relating to or characterizing revivalism | - |
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| rival | (adjective) as a rival in a competition | - |
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| rivalrous | (adjective) eager to surpass others | Synonyms: emulous |
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| substantival | (adjective) of or relating to or having the nature or function of a substantive (i.e. a noun or noun equivalent) | - |
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| trivalent | (adjective) having a valence of three | - |
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| unchivalrous | (adjective) offensively discourteous | Synonyms: caddish, ungallant |
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| univalent | (adjective) used of a chromosome that is not paired or united with its homologous chromosome during synapsis | - |
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| (adjective) having a valence of 1 | Synonyms: monovalent |
| univalve | (adjective) used of mollusks, especially gastropods, as snails etc. | - |
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| unrivaled | (adjective) eminent beyond or above comparison | Synonyms: matchless, nonpareil, one, one and only, peerless, unmatchable, unmatched, unrivalled |
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| unrivalled | (adjective) eminent beyond or above comparison | Synonyms: matchless, nonpareil, one, one and only, peerless, unmatchable, unmatched, unrivaled |
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