Definition of "extenuate" in English

verb

To make (something) less dense, or thinner; also, to lower the viscosity of (something).
To make (someone or something) slender or thin; to emaciate, to waste.
To underestimate or understate the importance of (something); to underrate.
To beat or draw (a metal object, etc.) out so as to lessen the thickness.
To reduce the quality or quantity of (something); to lessen or weaken the force of (something).
To degrade (someone); to detract from (someone's qualities, reputation, etc.); to depreciate, to disparage.

adjective

Of a person: emaciated, wasted, weakened; of the body or part of it: atrophied, shrunken, withered.
Of a quality or thing: lessened, weakened.
Reduced to poverty; impoverished.