Definition of weaken in English:

weaken

Line breaks: weak¦en
Pronunciation: /ˈwiːk(ə)n
 
/

verb

Make or become weaker in power, resolve, or physical strength: [with object]: fault lines had weakened and shattered the rocks [no object]: his resistance had weakened
More example sentences
  • She hates this kind of thing normally, but all the hype and good reviews weakened her resolve.
  • It did not weaken his resolve, although there are times when bitterness wells to the surface.
  • His squad may be physically weakened, but he believes their resolve remains strong.
Synonyms
enfeeble, debilitate, incapacitate, sap one's strength, enervate, tire, exhaust, wear out;
wither, erode, diminish, destroy
decline, deteriorate, degenerate, shrivel, wilt, tire, languish, falter
impair, undermine, compromise;
invalidate, refute, rebut, negate, discredit
relent, give in, acquiesce, yield, give way, accede, succumb, come round;
consent, assent, agree;
soften, bend, ease up, ease off

Derivatives

weakener

noun
More example sentences
  • These are notorious weakeners of the immune system.
  • Says Coleridge, one of the foremost of English thinkers: ‘I believe the habit of perusing periodical works may be properly added to the catalogue of anti-mnemonics, or weakeners of the memory.’
  • As you might expect, increasing the number of interior walls in the signal's line of sight, ie fixed signal weakeners, made interference more likely, though again, a decent picture was usually possible, sometimes by making minor adjustments to the precise location of the receiver.

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