unreasonable

adj.

1. Not governed by reason: an unreasonable attitude.
2. Exceeding reasonable limits; immoderate: unreasonable demands. See synonyms at excessive.

unreasonableness un·rea'son·a·ble·ness n.
unreasonably un·rea'son·a·bly adv.

adjective

1. Not governed by or predicated on reason: illogical, irrational, unreasoned. Idioms: out of bounds. See reason/unreason.
2. Beyond all reason: obscene, outrageous, preposterous, ridiculous, shocking, unconscionable. Idioms: out of bounds, out of sight. See usual/unusual.

adj

Definition: extravagant; beyond normal limits
Antonyms: cheap, economical, low, plain, reasonable

adj

Definition: not logical or sensible
Antonyms: logical, practical, pragmatic, realistic, reasonable, sensible

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Arbitrary, capricious, absurd, immoderate, or exorbitant, 287 N.W. 122, 131; not conformable to reason, irrational, beyond bounds of reason or moderation, 268 P. 2d 605, 616. Compare reasonable.

Dansk (Danish)
adj. - urimelig, overdreven

Nederlands (Dutch)
redeloos, onredelijk, excessief

Français (French)
adj. - irréaliste (une attitude), déraisonnable, excessif, indue (une heure)

Deutsch (German)
adj. - unvernünftig, übertrieben

Ελληνική (Greek)
adj. - παράλογος, άτοπος, εξωφρενικός

Italiano (Italian)
irragionevole, ingiusto

Português (Portuguese)
adj. - irrazoável, excessivo

Русский (Russian)
неразумный, чрезмерный

Español (Spanish)
adj. - irracional, irrazonable, desrazonable

Svenska (Swedish)
adj. - oförnuftig, oresonlig, omedgörlig, orimlig

中文（简体）(Chinese (Simplified))
不合理的, 不切实际的, 过度的

中文（繁體）(Chinese (Traditional))
adj. - 不合理的, 不切實際的, 過度的

한국어 (Korean)
adj. - 이해할 수 없는, 조리에 맞지 않는, 부당한

日本語 (Japanese)
adj. - 道理をわきまえない, 筋の通らない, 不合理な, 法外な

العربيه (Arabic)
‏(صفه) غير معقول, يخالف المنطق‏

עברית (Hebrew)
adj. - ‮לא הגיוני, לא סביר, מופרז‬

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