| 单词 | rational |
| 释义 | rational (once / 289 pages) 1adj 2adjn Use the adjective rational to describe people or ideas that operate according to logic or reason. While your brother has an artistic temperament, you have a rational one. Rational comes from the Latin word rationalis, meaning reasonable or logical. If you're rational, you do things based on logic, as opposed to impulse or whimsy. The original meaning in English was of something endowed with the ability to reason. Before we knew how smart some animals like dolphins are, writers liked to distinguish rational human minds from the supposedly irrational, instinctual minds of animals. WORD FAMILYrational: irrational, nonrational, rationalise, rationalism, rationality, rationalize, rationally, rationalness, rationals+/irrational: irrationality, irrationally, irrationals/irrationality: irrationalities/rationalisation: rationalisations/rationalise: rationalisation, rationalised, rationalises, rationalising/rationalism: rationalist, rationalistic/rationalist: rationalists/rationalistic: rationalistically/rationality: rationalities/rationalization: rationalizations/rationalize: rationalization, rationalized, rationalizes, rationalizing USAGE EXAMPLESIt’s her character’s job to be the rational one, the shrewd warrior who uses logic and calm in the face of nature’s thuggishness. Time(Dec 28, 2016) We aren’t creatures of unlimited compassion, or of entirely rational calculation. The Guardian(Dec 27, 2016) Fear actually short-circuits rational thought and gets the rally-goer to accept the strongman as the only way to avoid the perceived threat. Salon(Dec 26, 2016) 1 1adj consistent with or based on or using reason rational behavior a process of rational inference rational thought Syn|Ant logical capable of or reflecting the capability for correct and valid reasoning coherent, logical, lucidcapable of thinking and expressing yourself in a clear and consistent manner demythologised, demythologizedhaving mythical elements removed intelligent, reasoning, thinkingendowed with the capacity to reason reasonable, sanemarked by sound judgment reasonable, sensibleshowing reason or sound judgment sanementally healthy; free from mental disorder irrational not consistent with or using reason incoherentwithout logical or meaningful connection illogical, unlogicallacking in correct logical relation blind, unreasoningnot based on reason or evidence reasonlessnot endowed with the capacity to reason nonrationalnot based on reason superstitiousshowing ignorance of the laws of nature and faith in magic or chance unreasonablenot reasonable; not showing good judgment 2adj of or associated with or requiring the use of the mind the triumph of the rational over the animal side of man Syn intellectual, noetic mental involving the mind or an intellectual process 3adj having its source in or being guided by the intellect (as distinguished from experience or emotion) 2a rational analysis Syn intellectual appealing to or using the intellect 1adj capable of being expressed as a quotient of integers rational numbers Ant irrational real but not expressible as the quotient of two integers 2n an integer or a fraction Syn|Hypo|Hyper rational number fraction the quotient of two rational numbers fixed-point part, mantissathe positive fractional part of the representation of a logarithm; in the expression log 643 = 2.808 the mantissa is .808 common fraction, simple fractionthe quotient of two integers improper fractiona fraction whose numerator is larger than the denominator proper fractiona fraction with a numerator smaller than the denominator complex fraction, compound fractiona fraction with fractions in the numerator or denominator continued fractiona fraction whose numerator is an integer and whose denominator is an integer plus a fraction whose numerator is an integer and whose denominator is an integer plus a fraction and so on real, real number any rational or irrational number |
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