[n] a person lacking intelligence or common sense
[n] (archaic) any herbaceous plant having medicinal properties
[adj] easy and not involved or complicated; "an elementary problem in statistics"; "elementary, my dear Watson"; "a simple game"; "found an uncomplicated solution to the problem"
[adj] not elaborate in style; unornamented; "a simple country schoolhouse"; "her black dress--simple to austerity"
[adj] lacking mental capacity and devoid of subtlety
[adj] (botany) of leaf shapes; of leaves having no divisions or subdivisions
[adj] having few parts; not complex or complicated or involved; "a simple problem"; "simple mechanisms"; "a simple design"; "a simple substance"
[adj] exhibiting childlike simplicity and credulity; "childlike trust"; "dewy-eyed innocence"; "simple courtesy"
acerate, acerose, acicular, acuminate, apiculate, arrow-shaped, bladelike, caudate, childlike, cordate, cuneate, deltoid, dewy-eyed, dim-witted, dolabrate, dolabriform, easy, elemental, elementary, elliptic, elongate, ensiform, fiddle-shaped, half-witted,
blockhead, bonehead, boob, booby, changeling, cretin, dimwit, dolt, doofus, dope, dullard, dumbbell, dummy, dunce, dunderhead, fool, forgetful person, fuckhead, half-wit, hammerhead, herb, herbaceous plant, human, idiot, idiot savant, imbecile, individual, knucklehead, lame, loggerhead, lunkhead, moron, mortal, muggins, muttonhead, nincompoop, ninny, nitwit, numskull, person, pinhead, poop, poor fish, pudden-head, pudding head, retard, sap, saphead, scatterbrain, sheep, shithead, simple, smooth, somebody, someone, soul, space cadet, square, stupid, stupid person, subnormal, tomfool, twerp, twirp, twit