lacking in strength of body or muscle; not physically strong
lacking vitality; feeble; infirm
lacking in skill or strength in combat or competition: a weak team
lacking in moral strength or willpower; yielding easily to temptation, the influence of others, etc.
lacking in mental power, or in the ability to think, judge, decide, etc.
lacking ruling power, or authority: a weak government
having few resources; relatively low in wealth, numbers, supplies, etc.: the weaker nations
lacking in force or effectiveness: weak discipline
lacking in strength of material or construction; unable to resist strain, pressure, etc.; easily torn, broken, bent, etc.: a weak railing
not sound or secure; unable to stand up to an attack: a weak fortification
not functioning normally or well: said of a body organ or part: weak eyes
easily upset; queasy: a weak stomach
indicating or suggesting moral or physical lack of strength: weak features
lacking in volume, intensity, etc.; faint: a weak voice, a weak current
lacking the usual or proper strength; specif.,
having only a small amount of its essential ingredient; diluted: weak tea
not as potent as usual or as others of the kind: a weak drug
lacking, poor, or deficient in something specified: weak in grammar, a baseball team weak in pitchers
ineffective; unconvincing: a weak argument
faulty: weak logic
tending toward lower prices: said of a market, stock, etc.
Chem. having a low ion concentration: said as of certain acids and bases
Gram. expressing variation in tense by the addition of an inflectional suffix rather than by internal change of a syllabic vowel; regular (Ex.: talk, talked, talked)
Phonet. unstressed or lightly stressed: said of a syllable