Main entry: weak
Definition: wanting in physical strength
Usage: a weak pillar
Antonyms: strong
Definition: having strength or power greater than average or expected
Definition: having spines
Definition: marked by courage and determination in the face of difficulties or danger; robust and uninhibited
Antonyms: invulnerable
Definition: immune to attack; impregnable
Main entry: weak
Definition: tending downward in price
Usage: a weak market for oil stocks
Antonyms: up
Definition: being or moving higher in position or greater in some value; being above a former position or level
Antonyms: up, upward, upwardly, upwards
Definition: spatially or metaphorically from a lower to a higher position
Antonyms: up
Definition: to a more central or a more northerly place
Antonyms: up
Definition: to a higher intensity
Main entry: fallible, frail, imperfect, weak
Definition: wanting in moral strength, courage, or will; having the attributes of man as opposed to e.g. divine beings
Usage: I'm only a fallible human; frail humanity
Antonyms: nonhuman
Definition: not human; not belonging to or produced by or appropriate to human beings
Main entry: feeble, weak, weakly, sapless, rickety, infirm, debile, decrepit
Definition: lacking bodily or muscular strength or vitality
Usage: a feeble old woman; her body looked sapless
Antonyms: robust
Definition: sturdy and strong in form, constitution, or construction
Main entry: weak
Definition: (used of verbs) having standard (or regular) inflection
Antonyms: irregular
Definition: contrary to rule or accepted order or general practice
Antonyms: irregular
Definition: (of solids) not having clear dimensions that can be measured; volume must be determined with the principle of liquid displacement
Antonyms: irregular
Definition: (used of the military) not belonging to or engaged in by regular army forces
Main entry: weak
Definition: deficient in intelligence or mental power
Usage: a weak mind
Antonyms: smart
Definition: showing mental alertness and calculation and resourcefulness
Main entry: washy, watery, weak
Definition: overly diluted; thin and insipid
Usage: washy coffee; watery milk; weak tea
Antonyms: undiluted
Definition: not diluted
Main entry: weak
Definition: likely to fail under stress or pressure
Usage: the weak link in the chain
Antonyms: infallible
Definition: incapable of failure or error
Main entry: weak
Definition: deficient or lacking in some skill
Usage: he's weak in spelling
Antonyms: skilled
Definition: having or showing or requiring special skill
Main entry: weak, faint
Definition: deficient in magnitude; barely perceptible; lacking clarity or brightness or loudness etc
Usage: a faint outline; 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
Antonyms: imperceptible, unperceivable
Definition: impossible or difficult to perceive by the mind or senses
Main entry: weak
Definition: not having authority, political strength, or governing power
Usage: a weak president
Antonyms: powerful
Definition: having great power or force or potency or effect
Main entry: weak, light, unaccented
Definition: (used of vowels or syllables) pronounced with little or no stress
Usage: a syllable that ends in a short vowel is a light syllable; a weak stress on the second syllable