zany

Meanings

• a buffoon in one of the old comedies; imitates others for ludicrous effect
• a man who is a stupid incompetent fool
• ludicrous, foolish
• like a clown
  • "a zany sense of humor"

Synonyms

bozo, buffoonish, clownish, clownlike, cockamamie, cockamamy, cuckoo, fathead, goof, goofball, goofy, goose, jackass, sappy, silly, twat, wacky, whacky