| 释义 |
rational
ra·tion·al R0053500 (răsh′ə-nəl)adj.1. Having or exercising the ability to reason. See Synonyms at logical.2. Consistent with or based on reason or good judgment; logical or sensible: rational decisions.3. Of sound mind; sane: wondered if the eccentric neighbor was not completely rational.4. Mathematics Capable of being expressed as a quotient of integers.n. Mathematics A rational number.
[Middle English racional, from Old French racionel, from Latin ratiōnālis, from ratiō, ratiōn-, reason; see reason.]
ra′tion·al·ly adv.ra′tion·al·ness n.rational (ˈræʃənəl) adj1. using reason or logic in thinking out a problem2. in accordance with the principles of logic or reason; reasonable3. of sound mind; sane: the patient seemed quite rational. 4. endowed with the capacity to reason; capable of logical thought: man is a rational being. 5. (Mathematics) maths expressible as a ratio of two integers or polynomials: a rational number; a rational function. n (Mathematics) maths a rational number[C14: from Latin ratiōnālis, from ratiō reason] ˈrationally adv ˈrationalness nra•tion•al (ˈræʃ ə nl, ˈræʃ nl)
adj. 1. based on or agreeable to reason: a rational decision. 2. exercising reason: a rational negotiator. 3. sane; lucid: The patient seems rational. 4. Math. a. capable of being expressed exactly by a ratio of two integers. b. (of a function) capable of being expressed exactly by a ratio of two polynomials. n. 5. rational number. [1350–1400; Middle English racional < Latin ratiōnālis=ratiōn- (s. of ratiō) reason + -ālis -al1] ra′tion•al•ly, adv. reasonable rational1. 'reasonable'When someone is reasonable, they behave in a fair and sensible way. Our mother was always very reasonable.I can't do that, Morris. Be reasonable.If something such as a proposal or judgement is reasonable, it is acceptable because it is fair or sensible. Rules and procedures need to be accepted as reasonable by those who operate them.There was no reasonable explanation for her decision.2. 'rational'You say that someone is rational when they are able to think clearly and make decisions and judgements based on reason rather than emotion. Let's talk about this like two rational people.You can also describe people's behaviour as rational. This was a totally rational response to a set of complex problems.Thesaurus| Noun | 1. | rational - an integer or a fractionrational numberreal, real number - any rational or irrational numberfraction - the quotient of two rational numbers | | Adj. | 1. | rational - consistent with or based on or using reason; "rational behavior"; "a process of rational inference"; "rational thought"logical - capable of or reflecting the capability for correct and valid reasoning; "a logical mind"reasonable, sensible - showing reason or sound judgment; "a sensible choice"; "a sensible person"sane - mentally healthy; free from mental disorder; "appears to be completely sane"irrational - not consistent with or using reason; "irrational fears"; "irrational animals" | | 2. | rational - of or associated with or requiring the use of the mind; "intellectual problems"; "the triumph of the rational over the animal side of man"intellectual, noeticmental - involving the mind or an intellectual process; "mental images of happy times"; "mental calculations"; "in a terrible mental state"; "mental suffering"; "free from mental defects" | | 3. | rational - capable of being expressed as a quotient of integers; "rational numbers"math, mathematics, maths - a science (or group of related sciences) dealing with the logic of quantity and shape and arrangementirrational - real but not expressible as the quotient of two integers; "irrational numbers" | | 4. | rational - having its source in or being guided by the intellect (as distinguished from experience or emotion); "a rational analysis"intellectual - appealing to or using the intellect; "satire is an intellectual weapon"; "intellectual workers engaged in creative literary or artistic or scientific labor"; "has tremendous intellectual sympathy for oppressed people"; "coldly intellectual"; "sort of the intellectual type"; "intellectual literature" |
rationaladjective1. sensible, sound, wise, reasonable, intelligent, realistic, logical, enlightened, sane, lucid, judicious, sagacious a rational decision2. reasoning, thinking, cognitive, cerebral, ratiocinative Man, as a rational being, may act against his impulses.3. sane, balanced, normal, all there (informal), lucid, of sound mind, compos mentis (Latin), in your right mind Rachel looked calmer and more rational now.
sane unreasonable, insane, irrational, unsoundrationaladjective1. Able to reason validly:analytic, analytical, logical, ratiocinative.2. Possessing, proceeding from, or exhibiting good judgment and prudence:balanced, commonsensible, commonsensical, judicious, levelheaded, prudent, reasonable, sagacious, sage, sane, sapient, sensible, sound, well-founded, well-grounded, wise.3. Mentally healthy:compos mentis, lucid, sane.Idioms: all there, in one's right mind, of sound mind .4. Consistent with reason and intellect:consequent, intelligent, logical, reasonable.Translationsrational (ˈraʃənl) adjective1. able to think, reason and judge etc. Man is a rational animal. 理性思考的 有推理能力的2. sensible; reasonable; logical; not (over-) influenced by emotions etc. There must be a rational explanation for those strange noises 理性的 有理性的ˈrationally adverb 理性地 理性地ˌrationˈality noun 理性 合理性
rational
rational Maths1. expressible as a ratio of two integers or polynomials 2. a rational number rational[Mathematics] a fractional number n/d, where n and d areintegers, n is the numerator and d is the denominator. Theset of all rational numbers is usually called Q.Computers do not usually deal with rational numbers butinstead convert them to real numbers which are represented(approximately in some cases) as floating-point numbers.Compare irrational.rational
rational [rash´un-al] based upon reason; characterized by possession of one's reason.ra·tion·al (rash'un), 1. Pertaining to reasoning or to the higher thought processes; based on objective or scientific knowledge, in contrast to empiric (1). 2. Influenced by reasoning rather than by emotion. 3. Having the reasoning faculties; not delirious or comatose. [L. rationalis, fr. ratio, reason] rational (răsh′ə-nəl)adj.1. Having or exercising the ability to reason.2. Consistent with or based on reason or good judgment; logical or sensible: rational decisions.
ra′tion·al·ly adv.ra′tion·al·ness n.ra·tion·al (rash'ŭn-ăl) 1. Pertaining to reasoning or to the higher thought processes; based on objective or scientific knowledge, in contrast to empiric (1). 2. Influenced by reasoning rather than by emotion. 3. Having the reasoning faculties; not delirious or comatose. [L. rationalis, fr. ratio, reason]rational
Related to rational: rational functionSynonyms for rationaladj sensibleSynonyms- sensible
- sound
- wise
- reasonable
- intelligent
- realistic
- logical
- enlightened
- sane
- lucid
- judicious
- sagacious
adj reasoningSynonyms- reasoning
- thinking
- cognitive
- cerebral
- ratiocinative
adj saneSynonyms- sane
- balanced
- normal
- all there
- lucid
- of sound mind
- compos mentis
- in your right mind
Antonyms- unreasonable
- insane
- irrational
- unsound
Synonyms for rationaladj able to reason validlySynonyms- analytic
- analytical
- logical
- ratiocinative
adj possessing, proceeding from, or exhibiting good judgment and prudenceSynonyms- balanced
- commonsensible
- commonsensical
- judicious
- levelheaded
- prudent
- reasonable
- sagacious
- sage
- sane
- sapient
- sensible
- sound
- well-founded
- well-grounded
- wise
adj mentally healthySynonymsadj consistent with reason and intellectSynonyms- consequent
- intelligent
- logical
- reasonable
Synonyms for rationalnoun an integer or a fractionSynonymsRelated Wordsadj consistent with or based on or using reasonRelated Words- logical
- reasonable
- sensible
- sane
Antonymsadj of or associated with or requiring the use of the mindSynonymsRelated Wordsadj capable of being expressed as a quotient of integersRelated WordsAntonymsadj having its source in or being guided by the intellect (as distinguished from experience or emotion)Related Words |