Definition of

Weak

  1. (adj, all) wanting in physical strength
  2. (adj, all) overly diluted; thin and insipid
    watery milk
    weak tea
  3. (adj, all) (used of vowels or syllables) pronounced with little or no stress
    a weak stress on the second syllable
  4. (adj, all) wanting in moral strength, courage, or will; having the attributes of man as opposed to e.g. divine beings
    frail humanity
  5. (adj, all) tending downward in price
  6. (adj, all) deficient or lacking in some skill
  7. (adj, all) lacking bodily or muscular strength or vitality
    her body looked sapless
  8. (adj, all) (used of verbs) having standard (or regular) inflection
  9. (adj, all) not having authority, political strength, or governing power
  10. (adj, all) deficient in magnitude; barely perceptible; lacking clarity or brightness or loudness etc
    the wan sun cast faint shadows
    the faint light of a distant candle
    weak colors
    a faint hissing sound
    a faint aroma
    a weak pulse
  11. (adj, all) likely to fail under stress or pressure
  12. (adj, all) deficient in intelligence or mental power

via WordNet, Princeton University

Antonyms of Weak

strong

Alternate forms of Weak

Derivations: weakness

Origin of the word Weak

  1. c.1300, from O.N. veikr "weak," cognate with O.E. wac "weak, pliant, soft," from P.Gmc. *waikwaz "yield," *wikanan "bend" (cf. O.S. wek, Swed. vek, M.Du. weec, Du. week "weak, soft, tender," O.H.G. weih "yielding, soft," Ger. weich "soft," from PIE base *weik- "to bend, wind" (see vicarious). Sense of … more

via Online Etymology Dictionary, ©2001 Douglas Harper

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