Adjective

(er)

Lacking in force (usually strength) or ability.

* Shakespeare

a poor, infirm, weak , and despised old man

* Dryden

weak with hunger, mad with love

Unable to sustain a great weight, pressure, or strain.

a weak''' timber; a '''weak rope

Unable to withstand temptation, urgency, persuasion, etc.; easily impressed, moved, or overcome; accessible; vulnerable.

weak''' resolutions; '''weak virtue

* Joseph Addison, The Fair Petinent Act I, scene I:

Guard thy heart / On this weak side, where most our nature fails.

Dilute, lacking in taste or potency.

*

, title=The Mirror and the Lamp , chapter=2 citation , passage=That the young Mr. Churchills liked—but they did not like him coming round of an evening and drinking weak whisky-and-water while he held forth on railway debentures and corporation loans. Mr. Barrett, however, by fawning and flattery, seemed to be able to make not only Mrs. Churchill but everyone else do what he desired.}}

(grammar) Displaying a particular kind of inflection, including:

# (Germanic languages, of verbs) Regular in inflection, lacking vowel changes and having a past tense with -d- or -t-.

# (Germanic languages, of nouns) Showing less distinct grammatical endings.

# (Germanic languages, of adjectives) Definite in meaning, often used with a definite article or similar word.

(physics) One of the four fundamental forces associated with nuclear decay.

(slang) Bad or uncool.

(mathematics, logic) Having a narrow range of logical consequences; narrowly applicable. (Often contrasted with a statement which implies it.)

Resulting from, or indicating, lack of judgment, discernment, or firmness; unwise; hence, foolish.

* Milton

If evil thence ensue, / She first his weak indulgence will accuse.

Not having power to convince; not supported by force of reason or truth; unsustained.

The prosecution advanced a weak case.

* Milton

convinced of his weak arguing

Lacking in vigour or expression.

a weak''' sentence; a '''weak style

Not prevalent or effective, or not felt to be prevalent; not potent; feeble.

* Shakespeare

weak prayers

(stock exchange) Tending towards lower prices.

a weak market

Adjective

(en adjective)

Not the same; exhibiting a difference.

*

* 1971 , William S. Burroughs, , page 6

Enter the American tourist. He thinks of himself as a good guy but when he looks in the mirror to shave this good guy he has to admit that "well, other people are different from me and I don't really like them." This makes him feel guilty toward other people.

* {{quote-magazine, date=2013-07-19, author= Ian Sample

, volume=189, issue=6, page=34, magazine=(The Guardian Weekly) , title= Irregular bedtimes may affect children's brains , passage=Irregular bedtimes may disrupt healthy brain development in young children, according to a study of intelligence and sleeping habits.  ¶ Going to bed at a different time each night affected girls more than boys, but both fared worse on mental tasks than children who had a set bedtime, researchers found.}}

Various, assorted, diverse.

* 2006 , Delbert S. Elliott et al., Good Kids from Bad Neighborhoods: Successful Development in Social Context , Cambridge University Press, ISBN 9780521863575, page 19:

In any case, poor black respondents living in high-poverty neighborhoods are most likely to view their neighborhood as a single block or block group and to use this definition consistently when asked about different neighborhood characteristics and activities.

Distinct, separate; (used for emphasis after numbers and other determiners of quantity).

* {{quote-magazine, year=2013, month=May-June, author= Charles T. Ambrose

, title= Alzheimer’s Disease , volume=101, issue=3, page=200, magazine=(American Scientist) , passage=Similar studies of rats have employed four different intracranial resorbable, slow sustained release systems—surgical foam, a thermal gel depot, a microcapsule or biodegradable polymer beads.}}

Unlike most others; unusual.