Here's what rhymes with cusably.
excusably inexcusably Words that almost rhyme with cusably
immovably irreducibly suitably gloomily woozily unity beautifully brutally crucially eulogy humanly ruthlessly lunacy ruefully uselessly moodily frugally futilely gruesomely broodily presumably scrutiny jewelry acuity fluency mutiny usefully fluently prudently fruitfully truancy fruitlessly neutrally euphony garrulity unsuitably youthfully tunefully snootily glamourously community immunity annuity credulity truthfully futurity vacuity contumelies humourlessly disunity congruity contumacy imprudently impudently tenuity opportunity ambiguity autoimmunity untruthfully exiguity continuity ingenuity contiguity perspicuity promiscuity importunity translucency