1) Adjective for a lout 2) Big and clumsy 3) Boorish 4) Clumsy 5) Coarse 6) Crude 7) Dumb and clumsy 8) Galoot-like 9) Goofy and clumsy 10) Hardly refined 11) In a clumsy manner 12) Klutzy 13) Like a lout 14) Like a lummox 15) Like a palooka 16) Like a stereotypical palooka 17) Loutish 18) Loutlike Found on https://www.crosswordclues.com/clue/oafish