Lacking mental and physical alertness and activity:
hebetudinous, lethargic, sluggish, stupid, stuporous, torpid. See actionLacking in intelligence:
blockheaded, dense, doltish, dumb, hebetudinous, obtuse, stupid, thickheaded, thick-witted. (Informal) thick. (Slang) dimwitted. See abilitySo senseless as to be laughable:
absurd, foolish, harebrained, idiotic, imbecilic, insane, lunatic, mad, moronic, nonsensical, preposterous, silly, softheaded, tomfool, unearthly, zany. (Informal) cockeyed, crazy, loony, loopy. (Slang) balmy2, dippy, jerky, sappy, wacky. See ability, knowledge
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