1lacking the power to perform physically demanding tasks; having little physical strength or energy:she was recovering from flu, and was very weak
lacking power or influence:the central government had grown too weak to impose order (as plural noun the weak)the new king used his powers to protect the weak
(of a team or military force) containing too few members or members of insufficient quality:their problems arose from fielding weak teams in league matches
(of a faculty or part of the body) not able to fulfil its functions properly:he had a weak stomach
of a low standard; performing or performed badly:the choruses on this recording are weak
not convincing or logically forceful:the argument is an extremely weak onea weak plot
exerting only a small force:a weak magnetic field
2liable to break or give way under pressure; easily damaged:the salamander’s tail may be broken off at a weak spot near the base
lacking the force of character to hold to one’s own decisions, beliefs, or principles; irresolute:he was not weak or a compromiser
(of a belief) not held with conviction or intensity:their commitment to the project is weak
(of prices or a market) having a downward tendency.
3lacking intensity or brightness:a weak light from a single street lamp
(of a liquid or solution) heavily diluted:a cup of weak coffee
displaying or characterized by a lack of enthusiasm or energy:she managed a weak, nervous smile
(of features) not striking or strongly marked:his beard covered a weak chin
(of a syllable) unstressed.
4 Grammar denoting a class of verbs in Germanic languages that form the past tense and past participle by addition of a suffix (in English, typically -ed).
5 Physics relating to or denoting the weakest of the known kinds of force between particles, which acts only at distances less than about 10−15 cm, is very much weaker than the electromagnetic and the strong interactions, and conserves neither strangeness, parity, nor isospin.
the weaker sex
[treated as singular or plural] dated women regarded collectively.
the weakest link
the point at which a system, sequence, or organization is most vulnerable; the least dependable element or member:the replacement goalkeeper proved to be the team’s weakest link
