Synonyms for attenuate

Verb

1. rarefy, attenuate, weaken

usage: weaken the consistency of (a chemical substance)

2. attenuate, weaken

usage: become weaker, in strength, value, or magnitude

Adjective

1. attenuate, attenuated, faded, weakened, decreased (vs. increased), reduced

usage: reduced in strength; "the faded tones of an old recording"