Here's what rhymes with slooowly.
jowly Words that almost rhyme with slooowly
dowry loudly lousy downy gouty rowdy sourly cowrie dowdy mousy dourly howdy mouthy mousey towhee townie townee county bounty proudly cloudy soundly drowsy roundly stoutly bouncy brownie grouchy frowsy housefly frowzy slouchy grouchier devoutly foundry debauchee flouncy scroungy profoundly unsoundly paramountcy