Unwitting rhymes with:
acquitting, quitting, whitting, witting, acquitting, admitting, befitting, bitting, committing, emitting, fitting, flitting, gritting, hitting, knitting, omitting, permitting, pitting, quitting, refitting, resubmitting, sitting, slitting, spitting, splitting, submitting, transmitting, unremitting, whitting, witting
Unwitting sounds like:
undoing, undying, unending, uniden's, uniting, unwinding