English idiot, pest, fool, bamp, blockhead, bonehead, booby, cdesign proponentsist, changeling, chump, cretin, dingleberry, dork, douchebag, foolish, git, half wit, halfwit, idiotic, imbecile, moron, nincompoop, retard, saphead, shit for brains, silly, dense, gooselike, stupefied, stupid, unintelligent, bimbo
Czech slaboduch, idiot, bezmozek, blb, debil, debžot, hlupák, blbec, imbecil, kretén, pitomec, tupec, tupoun, tupoň, vymaštěnec, zabedněnec
brainiac, genius, genius hominis, brainbox, pedant, smart ass, wiseguy, doubledome, brain, demon, einstein, tutelary deity, brilliance, flair, ace, mastermind, mind, savant, wizard, wizardry