Synonyms of weak in English:

weak


See definition of weak

adjective

1‘they are too weak to move’

SYNONYMS

frail, feeble, puny, fragile, delicate, weakly

infirm, sick, sickly, shaky, debilitated, incapacitated, ailing, indisposed, decrepit, enervated, tired, fatigued, exhausted, spent, worn out

informal weedy

ANTONYMS

strong

2‘bats have very weak eyes’

SYNONYMS

inadequate, poor, feeble

defective, faulty, flawed, deficient, imperfect, substandard, lacking, wanting

ANTONYMS

strong, powerful, keen

3‘she made some weak excuse to break the appointment’

SYNONYMS

unconvincing, untenable, tenuous, implausible, unsatisfactory, slight, poor, inadequate, thin, transparent

unsound, feeble, flimsy, lame, hollow

informal pathetic

ANTONYMS

convincing

4‘I was too weak to be a rebel’

SYNONYMS

irresolute, spineless, craven, cowardly, pusillanimous, timorous, timid, indecisive, ineffectual, useless, inept, effete, meek, tame, powerless, ineffective, impotent, namby-pamby, soft, lily-livered, faint-hearted

informal yellow, weak-kneed, gutless, yellow-bellied, chicken-hearted, chicken

ANTONYMS

strong, resolute

5‘he had only a weak light to work by’

SYNONYMS

dim, pale, wan, faint, dull, feeble, muted

ANTONYMS

strong, bright

6‘‘you did this to her,’ he said in a weak voice’

SYNONYMS

indistinct, muffled, stifled, muted, hushed, faint, low, scarcely audible

ANTONYMS

strong, loud

7‘they drank weak coffee’

SYNONYMS

watery, diluted, dilute, watered down, thinned down, thin, adulterated, tasteless, flavourless, bland, insipid, mild

informal wishy-washy

ANTONYMS

strong, powerful

8‘a weak smile’

SYNONYMS

unenthusiastic, feeble, half-hearted, limp, lame


Phrases

    weak at the knees

      ‘she has accepted a challenge that would make the bravest man go weak at the knees’

      SYNONYMS

      faint, dizzy, light-headed, giddy, shaky

      weak-kneed, wobbly, quivery, unsteady, groggy, muzzy

      informal

      trembly, all of a tremble, all of a quiver, with rubbery legs, woozy

      rare

      vertiginous