Synonyms of bruisers

1 Syllable
dolt, goon, klutz, chump, boor, lout, clown, clod, beast, ox, fool, sap
2 Syllables
bumpkin, hayseed, lunkhead, loser, brute, dunce, idiot, yokel, half-wit, moron
3 Syllables
clodhopper, simpleton, nincompoop, blunderer
4 Syllables
imbecile