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