Here's what rhymes with frequency.
infrequency Words that almost rhyme with frequency
equally frequently regency leniency piquancy evenly secrecy decency easily recently legally infrequently unequally unfrequently eafily realty leniently sleepily evilly peony reapply regally cheekily piquantly sleeplessly sneakily creakily coequally sleazily deity speedily illegally peacefully ceaselessly decently fealty greedily grievously needlessly peaceably unevenly zealously aridity dreamily gleefully indecency serenely genially heedlessly seamlessly drearily breezily feasibly speciously speechlessly greasily heedfully needfully creepily wheezily squeakily creamily obesity agreeably appreciably supremely uneasily ideality unspeakably facetiously naivety egregiously phonemically believably queasily anemically ingeniously coherently deceitfully indecently irredeemably obscenely dubiety covetously inappreciably conveniently conceivably irretrievably unbelievably benignity disagreeably congenially conceitedly unrelievedly historicity crystallinity heterogeneously centripetally indefeasibly homogeneity spontaneity simultaneity inconceivably inconveniently heterogeneity contemporaneity