Unallocate rhymes with:
allocate, misallocate, allocate, aluminosilicate, complicate, explicate, misallocate, replicate, uncomplicate, abdicate, aguacate, allocate, aluminosilicate, authenticate, communicate, complicate, dedicate, deprecate, domesticate, educate, equivocate, eradicate, excommunicate, explicate, extricate, fabricate, indicate, intoxicate, misallocate, miscommunicate, pontificate, predicate, prognosticate, reciprocate, rededicate, reeducate, replicate, sophisticate, suffocate, uncomplicate
Unallocate sounds like:
unallocated, unelected, unleashed, unlisted, unlocked, unmolested