- having a cruel, wicked, malicious nature or character.
- of, relating to, or befitting a villain: villainous treachery.
- outrageously base, wicked, or vile: a villainous attack on his character.
- very objectionable or unpleasant; bad; wretched: a villainous storm.
- of, like, or appropriate to a villain
- very bad or disagreeablea villainous climate
c.1300, from Old French vileneus, from villain; see villain.