ugly 12 synonyms and 11 antonyms for ugly, ranked by how commonly they're used. Adj — Unpleasant to look at; not attractive. Synonyms for ugly bad beat butters butt-ugly clapped coyote ugly deform fugly like the back end of a bus plug-ugly ugly as sin unpretty Antonyms for ugly attractive gorgeous beautiful handsome pretty sightly pleasing moral comely good-looking nice ← Back to the full definition of ugly