weak

weak [adj1] not strong anemic, debilitated, decrepit, delicate, effete, enervated, exhausted, faint, feeble, flaccid, flimsy, forceless, fragile, frail, hesitant, impuissant, infirm, insubstantial, irresolute, lackadaisical*, languid, languorous, limp, makeshift, out of gas*, powerless, prostrate, puny, rickety, rocky*, rotten, senile, shaky, sickly, sluggish, spent, spindly, supine, tender, torpid, uncertain, undependable, unsound, unsteady, unsubstantial, wasted, wavering, weakened, weakly, wobbly; concepts 314,488,489 —Ant. firm, potent, strong weak [adj2] cowardly faint-hearted, fluctuant, frightened, hesitant, impotent, indecisive, ineffectual, infirm, insecure, irresolute, laidback*, nerveless, nervous, palsied, powerless, shaky, soft, spineless, tender, timorous, uncertain, undependable, unreliable, unstable, unsure, vacillating, wavering, weak-kneed*, wimpy*, wishy-washy*, wobbly, zero*; concepts 402,403,542 —Ant. bold, brave, confident weak [adj3] faint, soft bated, dim, distant, dull, feeble, gentle, imperceptible, inaudible, indistinct, low, muffled, pale, poor, quiet, reedy, slight, small, stifled, thin, unaccented, unstressed, whispered; concept 594 —Ant. loud, noisy, potent, strong weak [adj4] deficient, feeble faulty, flabby, flimsy, forceless, green*, handicapped, hollow, immature, implausible, impotent, improbable, inadequate, incompetent, incomplete, inconceivable, inconclusive, incredible, ineffective, ineffectual, inept, invalid, lacking, lame, limited, pathetic, poor, raw, shaky, shallow, slight, slim, small, spineless, substandard, thick, thin, unbelievable, unconvincing, unprepared, unqualified, unsatisfactory, unsubstantial, unsure, untrained, wanting; concepts 537,558,570 —Ant. able, capable, fit, sufficient weak [adj5] exposed, vulnerable accessible, assailable, defenseless, helpless, indefensible, unguarded, unprotected, unsafe, untenable, wide-open*, woundable; concepts 576,587 —Ant. guarded, protected, safe, secure weak [adj6] watered-down dilute, diluted, insipid, milk-and-water*, runny, tasteless, thin, washy, waterish, watery, wishy-washy*; concepts 462,485 —Ant. concentrated, strong, thick