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