Perfecting rhymes with:
affecting, defecting, effecting, infecting, affecting, collecting, connecting, correcting, defecting, deflecting, detecting, directing, disconnecting, disrespecting, dissecting, effecting, ejecting, electing, erecting, expecting, infecting, injecting, inspecting, intersecting, neglecting, objecting, projecting, prospecting, protecting, recollecting, reconnecting, redirecting, reelecting, reflecting, rejecting, respecting, resurrecting, selecting, subjecting, suspecting, unsuspecting
Perfecting sounds like:
propagating, propositions, provocations