| weak | (adjective) wanting in physical strength | - |
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| (adjective) overly diluted; thin and insipid | Synonyms: washy, watery |
| (adjective) tending downward in price | - |
| (adjective) likely to fail under stress or pressure | - |
| (adjective) lacking bodily or muscular strength or vitality | Synonyms: debile, decrepit, feeble, infirm, rickety, sapless, weakly |
| (adjective) wanting in moral strength, courage, or will; having the attributes of man as opposed to e.g. divine beings | Synonyms: fallible, frail, imperfect |
| (adjective) deficient in magnitude; barely perceptible; lacking clarity or brightness or loudness etc | Synonyms: faint |
| (adjective) not having authority, political strength, or governing power | - |
| (adjective) (used of verbs) having standard (or regular) inflection | - |
| (adjective) deficient in intelligence or mental power | - |
| (adjective) deficient or lacking in some skill | - |
| (adjective) (used of vowels or syllables) pronounced with little or no stress | Synonyms: light, unaccented |