Attenuate rhymes with:
extenuate, extenuate, extenuate, devaluate, evaluate, extenuate, devaluate, effectuate, evaluate, extenuate, infatuate, punctuate, reevaluate, self-perpetuate, situate
Attenuate sounds like:
adamant, adenoid, admit, admitted, atonement, attained, attainment, attend, attended, attendee, attenuated, attuned, auditioned, authement, automata, automate, automated