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