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Answer for the clue "Non compos mentis ", 10 letters:
irrational

Alternative clues for the word irrational

Word definitions for irrational in dictionaries

Wiktionary Word definitions in Wiktionary
a. 1 Not rational; unfounded or nonsensical. 2 (context mathematics arithmetic number theory not comparable English) Of a real number, that cannot be written as the ratio of two integers. n. A real number that can not be expressed as the quotient of two ...

Douglas Harper's Etymology Dictionary Word definitions in Douglas Harper's Etymology Dictionary
late 15c., "not endowed with reason" (of beats, etc.); earlier (of quantities) "inexpressible in ordinary numbers" (late 14c.); from Latin irrationalis "without reason," from assimilated form of in- "not, opposite of" (see in- (1)) + rationalis "reason" ...

WordNet Word definitions in WordNet
adj. not consistent with or using reason; "irrational fears"; "irrational animals" [ant: rational ] real but not expressible as the quotient of two integers; "irrational numbers" [ant: rational ]

The Collaborative International Dictionary Word definitions in The Collaborative International Dictionary
irrational \ir*ra"tion*al\ ([i^]r*r[a^]sh"[u^]n*al), a. [L. irrationalis: cf. F. irrationnel. See In- not, and Rational .] Not rational; void of reason or understanding; as, brutes are irrational animals. Not according to reason; having no rational basis; ...

Usage examples of irrational.

He also related almost all the adventures that Sancho had recounted, which both astonished them and made them laugh, for they thought what everyone thought: it was the strangest kind of madness that had ever afflicted an irrational mind.

It seems, therefore, that just as irrational animals are not baptized, so neither should madmen and imbeciles in those cases be baptized.

The essential thing is that every obstacle should be denied and that the irrational should be triumphant.

It was probably sheer irrational instinct which made us dim our single torch--tempted no longer by the decadent and sinister sculptures that leered menacingly from the oppressive walls--and which softened our progress to a cautious tiptoeing and crawling over the increasingly littered floor and heaps of debris.

He felt some irrational hope that Daneel had come to take him away, to tell him the Plan was fulfilled and he did not have to stand trial, did not have to live in the shadow of the displeasure of Linge Chen.

Sasquatch on the grounds that the film would be difficult to fake, to one of irrational rejection based on an emotional response to the possibility that the Sasquatch actually exists.

Was he ashamed of grassing, even on so unattractive a character as Neville Skeate, or did he feel, as even proven liars sometimes do in the witness box, a sudden, irrational urge to tell the truth?

As the second version of his tendentious anecdote shows, he goes on to proclaim that Islam is an irrational herd or mass phenomenon, ruling Muslims by passions, instincts, and unreflecting hatreds.

Granting that there was a womanly intelligence there, as yet unquickened, he was not so irrational as to imagine he could jostle it into illumining activity in one short hour, or day, or week.

It has deep significance for those who have lived through social chaos, uprootedness, irrational torture, and this accounts for the pessimism and nightmarish imagery that pervade much Existentialist writing.

Carcassone, named Loba, or the Wolfess, the excess of his passion drove him over the country, howling like a wolf, and demeaning himself more like an irrational beast than a rational man.

An irrational instinct had rendered the painter and his paintings antipathetic to him at their first meeting.

The Yahoos, regarded as a distinct species, humanoid rather than equine, represent the irrational bestiality that the Houyhnhnms reject.

He worried for fear he would do something irrational while the attack was upon him, and ostracize himself in the village.

She did not demand that they be important to anyone else, yet it galled her that the world had passed through those years of ordeal without significant scars, and it also imbued her with the irrational fear that if she were to enter the village, she might suffer some magical slippage back through time and reinhabit her old life.