Instinctive knowing (without the use of rational processes).

Roget 450: intellect, mind, understanding, reason, thinking principle; rationality; cogitative faculties, cognitive faculties, discursive faculties, reasoning faculties, intellectual faculties; faculties, senses, consciousness, observation, percipience, intelligence, intellection, intuition, association of ideas, instinct, conception, judgment, wits, parts, capacity, intellectuality, genius; brains, cognitive powers, intellectual powers; wit etc. 498; ability etc. (skill) 698; wisdom etc. 498; Vernunft [G.], Verstand [G.].    soul, spirit, ghost, inner man, heart, breast, bosom, penetralia mentis [Lat.], divina particula aurae [Lat.], heart's core; the Absolute, psyche, subliminal consciousness, supreme principle.    brain, organ of thought, seat of thought; sensorium^†, sensory; head, headpiece; pate, noddle^†, noggin, skull, scull, pericranium [Med.], cerebrum, cranium, brainpan^†, sconce, upper story.    [in computers] [Comp.] central processing unit, CPU; arithmetic and logical unit, ALU.    [Science of mind] metaphysics; psychics, psychology; ideology; mental philosophy, moral philosophy; philosophy of the mind; pneumatology^†, phrenology; craniology [Med.], cranioscopy [Med.].    ideality, idealism; transcendentalism, spiritualism; immateriality etc. 317; universal concept, universal conception.    metaphysician, psychologist etc. ... show more

Dutch: feeling, instinct, intuïtie
Polish: trzecie oko, szósty zmysł, zmysł, intuicja, wyczucie

An impression that something might be the case:
— He had an intuition that something had gone wrong.

synonyms: hunch, suspicion.

Roget 477: intuition, instinct, association, hunch, gut feeling; presentiment, premonition; rule of thumb; superstition; astrology^†; faith (supposition) 514.    sophistry, paralogy^†, perversion, casuistry, jesuitry, equivocation, evasion; chicane, chicanery; quiddet^†, quiddity; mystification; special pleading; speciousness etc. adj.; nonsense etc. 497; word sense, tongue sense.    false reasoning, vicious reasoning, circular reasoning; petitio principii [Lat.], ignoratio elenchi [Lat.]; post hoc ergo propter hoc [Lat.]; non sequitur, ignotum per ignotius [Lat.].    misjudgment etc. 481; false teaching etc. 538.    sophism, solecism, paralogism^†; quibble, quirk, elenchus^†, elench^†, fallacy, quodlibet, subterfuge, subtlety, quillet^†; inconsistency, antilogy^†; a delusion, a mockery, and a snare" [Denman]; claptrap, cant, mere words; lame and impotent conclusion" [Othello]. meshes of sophistry, cobwebs of sophistry; flaw in an argument; weak point, bad case.    overrefinement^†; hairsplitting etc. v.. ... show more

Roget 490: knowledge; cognizance, cognition, cognoscence^†; acquaintance, experience, ken [Scot.], privity^†, insight, familiarity; comprehension, apprehension; recognition; appreciation etc. (judgment) 480; intuition; conscience, consciousness; perception, precognition; acroamatics^†.    light, enlightenment; glimpse, inkling; glimmer, glimmering; dawn; scent, suspicion; impression etc. (idea) 453; discovery etc. 480.1. system of knowledge, body of knowledge; science, philosophy, pansophy^†; acroama^†; theory, aetiology^†, etiology; circle of the sciences; pandect^†, doctrine, body of doctrine; cyclopedia, encyclopedia; school etc. (system of opinions) 484.    tree of knowledge; republic of letters etc. (language) 560.    erudition, learning, lore, scholarship, reading, letters; literature; book madness; book learning, bookishness; bibliomania^†, bibliolatry^†; information, general information; store of knowledge &c.; education etc. (teaching) 537; culture, menticulture^†, attainments; acquirements, acquisitions; accomplishments; proficiency; practical knowledge etc. (skill) 698; liberal education; dilettantism; rudiments etc. (beginning) 66.    deep knowledge, profound knowledge, solid knowledge, accurate knowledge, acroatic knowledge^†, acroamatic knowledge^†, vast knowledge, extensive knowledge, encyclopedic knowledge, encyclopedic learning; omniscience, pantology^†.    march of intellect; progress of science, advance of science, advance of learning; schoolmaster abroad.    [person who knows much] scholar etc. 492.    ... show more

Dutch: verdenking
Polish: przeczucie