Lack of intellectual power.

Roget 491: ignorance, nescience, tabula rasa [Lat.], crass ignorance, ignorance crasse [Fr.]; unfamiliarity, unacquaintance^†; unconsciousness etc. adj.; darkness, blindness; incomprehension, inexperience, simplicity.    unknown quantities, x, y, z.    sealed book, terra incognita, virgin soil, unexplored ground; dark ages.    [Imperfect knowledge] smattering, sciolism^†, glimmering, dilettantism; bewilderment etc. (uncertainty) 475; incapacity.    [Affectation of knowledge] pedantry; charlatanry, charlatism^†; Philister^†, Philistine.    ... show more

Roget 499: want of intelligence etc. 498, want of intellect etc. 450; shadowness^†, silliness, foolishness etc. adj.; imbecility, incapacity, vacancy of mind, poverty of intellect, weakness of intellect, clouded perception, poor head, apartments to let; stupidity, stolidity; hebetude^†, dull understanding, meanest capacity, shortsightedness; incompetence etc. (unskillfulness) 699.    one's weak side, not one's strong point; bias etc. 481; infatuation etc. (insanity) 503.    simplicity, puerility, babyhood; dotage, anility^†, second childishness, fatuity; idiocy, idiotism^†; driveling.    folly, frivolity, irrationality, trifling, ineptitude, nugacity^†, inconsistency, lip wisdom, conceit; sophistry etc. 477; giddiness etc. (inattention) 458; eccentricity etc. 503; extravagance etc. (absurdity) 497; rashness etc. 863.    act of folly etc. 699.    ... show more

Roget 158: impotence; inability, disability; disablement, impuissance, imbecility; incapacity, incapability; inaptitude, ineptitude, incompetence, unproductivity^†; indocility^†; invalidity, disqualification; inefficiency, wastefulness.    telum imbelle [Lat.], brutum fulmen [Lat.], blank, blank cartridge, flash in the pan, vox et proeterea nihil [Lat.], dead letter, bit of waste paper, dummy; paper tiger; Quaker gun.    inefficacy etc. (inutility) 645^†; failure etc. 732.    helplessness etc. adj.; prostration, paralysis, palsy, apoplexy, syncope, sideration^†, deliquium [Lat.], collapse, exhaustion, softening of the brain, inanition; emasculation, orchiotomy [Med.], orchotomy [Med.].    cripple, old woman, muff, powder puff, creampuff, pussycat, wimp, mollycoddle; eunuch.    ... show more

Polish: bezrozumność

Lack of physical or natural qualifications.