1) Blockheaded 2) Dumb 3) Fatheaded 4) Jerky 5) Loggerheaded 6) Stupid 7) Thick 8) Thick headed 9) Witless 1) Blockheaded 2) Fatheaded 3) Foolish 4) Like mother hubbard 5) Loggerheaded 6) Really, really dumb 7) Stupid 8) Thick 9) Thick-skulled 10) Thickheaded 11) Wooden-headed