Blockhead, ass, and birdbrain are all synonyms for jackass. Genius and smart person are antonyms of jackass. And here are 31 another word for jackass.
Ass, birdbrain, blockhead, bonehead, buffoon, clod, clown, cretin, dimwit, dodo, dolt, donkey, dunce, dunderhead, fool, goon, halfwit, idiot, ignoramus, imbecile, lamebrain, moron, mule, nincompoop, ninny, nitwit, numbskull, scatterbrain, simpleton, and prat are all synonyms for jackass.
Jackass synonym page has a variety of synonyms that differ in length. 1 synonym with 3, and 12 letters and 6 synonyms with 4, and 9 letters. 5 synonyms with 5 letters and 4 synonyms with 6 letters.
2 synonyms with 7, 8, and 10 letters. For a total of 29 another word for jackass.
He acted like a total jackass.
Don’t be a jackass in public.
That jackass made a foolish mistake.
I can't believe he's such a jackass.