Here's what rhymes with tightly.
lightly rightly brightly nightly knightly sightly tritely knightlier sightlier slightly politely sprightly uprightly sprightlier unsightly eruditely unsightlier contritely impolitely forthrightly Words that almost rhyme with tightly
idly widely ripely snidely timely iti likely highly mighty tiny finely lively icy nicely wisely ivy tidy dryly shyly wily blithely ibi ici idee iri wryly wifely vilely dicey nightie piney piny whitey lithely nighty styli chivy kindly ninety mildly psyche wildly blindly divinely shiny untimely spicy widi hyphae slyly spiny benignly feisty flighty spiky chenille limy pricey wiki smiley stymie supinely whiny limey showily siree spiry blimey lichee spryly feistier stymy precisely unlikely almighty slimy untidy grimy unwisely sublimely vaginae skivvy crikey stripey concisely expiry unkindly inquiry enquiry imprecisely bolsheviki