A person who is not very bright:
— The economy, stupid!.

synonyms: dolt, dullard, pillock, poor fish, pudden-head, pudding head, stupe, stupid person.

Dutch: sukkel, appelflap, augurk, dombo, domoor, droplul, druiloor, eend, eendvogel, ei, ezelsveulen, flapdrol, jojo, kalf, kalfskop, kloris, kuiken, leeghoofd, minkukel, nitwit, oelewapper, oen, oetlul, onbenul, schaapskop, stomkop, stommeling, stommerd, stommerik, sufferd, sufkont, sufkop, uilebal, uilskuiken, weetniet ... show more
Polish: baran, półgłówek, dureń, bałwan, przygłup, ptasi móżdżek, głąb kapuściany, bezmózgowiec, głupi, kurzy móżdżek, głupek, bezmózg, barania łąka, ćwok, półgłupek, pustak, idiota, kretyn, pustogłów ... show more

Lacking or marked by lack of intellectual acuity.

Roget 843: dull, dull as ditch water; unentertaining, uninteresting, flat, dry as dust; unfunny, unlively^†, logy [U.S.]; unimaginative; insulse^†; dry as dust; prosy, prosing, prosaic; matter of fact, commonplace, pedestrian, pointless; weary stale flat and unprofitable" [Hamlet]. stupid, slow, flat, insipid, vapid, humdrum, monotonous; melancholic etc. 837; stolid etc. 499; plodding.    boring, tiresome, tedious etc. 841.    ... show more

Roget 481: misjudging etc. v.; ill-judging, wrong-headed; prejudiced etc. v.; jaundiced; shortsighted, purblind; partial, one-sided, superficial.    narrow-minded, narrow-souled^†; mean-spirited; confined, illiberal, intolerant, besotted, infatuated, fanatical, entete [Fr.], positive, dogmatic, conceited; opinative, opiniative^†; opinioned, opinionate, opinionative, opinionated; self-opinioned, wedded to an opinion, opini=atre; bigoted etc. (obstinate) 606; crotchety, fussy, impracticable; unreasonable, stupid etc. 499; credulous etc. 486; warped.    misjudged etc. v.. ... show more

Roget 486: credulous, gullible; easily deceived etc. 545; simple, green, soft, childish, silly, stupid; easily convinced; over-credulous, over confident, over trustful; infatuated, superstitious; confiding etc. (believing) 484.    ... show more

Roget 699: unskillful etc. 698; inexpert; bungling etc. v.; awkward, clumsy, unhandy, lubberly, gauche, maladroit; left-handed, heavy-handed; slovenly, slatternly; gawky.    adrift, at fault.    inapt, unapt; inhabile [Fr.]; untractable^†, unteachable; giddy etc. (inattentive) 458; inconsiderate etc. (neglectful) 460; stupid etc. 499; inactive etc. 683; incompetent; unqualified, disqualified, ill-qualified; unfit; quackish; raw, green, inexperienced, rusty, out of practice.    unaccustomed, unused, untrained etc. 537, uninitiated, unconversant etc. (ignorant) 491^†; shiftless; unstatesmanlike.    unadvised; ill-advised, misadvised; ill-devised, ill-imagined, ill-judged, ill-contrived, ill-conducted; unguided, misguided; misconducted, foolish, wild; infelicitous; penny wise and pound foolish etc. (inconsistent) 608.    ... show more

Roget 841: wearying etc. v.; wearing; wearisome, tiresome, irksome; uninteresting, stupid, bald, devoid of interest, dry, monotonous, dull, arid, tedious, humdrum, mortal, flat; prosy, prosing; slow, soporific, somniferous.    disgusting etc. v.; unenjoyed^†.    weary, tired etc. v.; drowsy etc. (sleepy) 683; uninterested, flagging, used up, worn out, blase, life-weary, weary of life; sick of.    ... show more

Polish: niemądry, głupi

In a state of mental numbness especially as resulting from shock:
— Was stupid from fatigue.

synonyms: dazed, stunned, stupefied.

Lacking intelligence.

synonym: unintelligent.

Roget 499: unintelligent [Applied to persons], unintellectual, unreasoning; mindless, witless, reasoningless^†, brainless; halfbaked; having no head etc. 498; not bright etc. 498; inapprehensible^†.    weak headed, addle headed, puzzle headed, blunder headed, muddle headed, muddy headed, pig headed, beetle headed, buffle headed^†, chuckle headed, mutton headed, maggoty headed, grossheaded^†; beef headed, fat witted, fat-headed.    weak-minded, feeble-minded; dull minded, shallow minded, lack-brained; rattle-brained, rattle headed; half witted, lean witted, short witted, dull witted, blunt-witted, shallow-pated^†, clod-pated^†, addle-pated^†, addle-brained^†; dim-sighted, short-sighted; thick-skulled; weak in the upper story.    shallow, borne, weak, wanting, soft, sappy, spoony; dull, dull as a beetle; stupid, heavy, insulse^†, obtuse, blunt, stolid, doltish; asinine; inapt etc. 699; prosaic etc. 843; hebetudinous^†.    childish, child-like; infantine^†, infantile, babyish, babish^†; puerile, anile; simple etc. (credulous) 486; old-womanish.    fatuous, idiotic, imbecile, driveling; blatant, babbling; vacant; sottish; bewildered etc. 475.    blockish^†, unteachable Boeotian, Boeotic; bovine; ungifted, undiscerning^†, unenlightened, unwise, unphilosophical^†; apish; simious^†.    foolish, silly, senseless, irrational, insensate, nonsensical, inept; maudlin.    narrow-minded etc. 481; bigoted etc. (obstinate) 606; giddy etc. (thoughtless) 458; rash etc. 863; eccentric etc. (crazed) 503.    [Applied to actions] foolish, unwise, injudicious, improper, unreasonable, without reason, ridiculous, absurd, idiotic, silly, stupid, asinine; ill-imagined, ill-advised, ill-judged, ill-devised; mal entendu [Fr.]; inconsistent, irrational, unphilosophical^†; extravagant etc. (nonsensical) 497; sleeveless, idle; pointless, useless etc. 645; inexpedient etc. 647; frivolous etc. (trivial) 643.    ... show more

Dutch: onintelligent
Polish: nieinteligentny