rational

英 [ˈræʃnəl]

美 [ˈræʃnəl]

adj. 合理的; 理性的; 明智的; 理智的; 清醒的
n. 合理的事物; [数]有理数; 懂道理的人; 人类; 〈英〉合理的服装

CET4 CET6 考研 TOEFL IELTS GRE TEM4 TEM8

Collins.2 / BNC.3243 / COCA.4481

同义词辨析

rational reasonable sensible【导航词义：合理的】

rationaladj. 合理的，理智的

〔辨析〕

指想法、决定等基于理性判断的，也指人能冷静思考的。

〔例证〕

The project leader needs to be fully informed so he can make a rational decision.
项目负责人需要充分了解之后才可以作出合理的决定。
What he said sounds like a rational explanation.
他说的话听起来像是合理的解释。
She looks more rational now.
她现在看上去更加理智了。

reasonableadj. 有道理的，合情理的

〔辨析〕

指说法、请求、问题、报价等合情合理的，侧重公平性和合理性。

〔例证〕

Reasonable requests won't be turned down.
合情合理的请求是不会被拒绝的。
Don't you think it is a perfectly reasonable question?
你不认为这个问题问得很有道理吗？
She made us a reasonable offer for the house.
她给我们开出的房价公平合理。

sensibleadj. 明智的，合理的

〔辨析〕

指人及行为合理、务实且表现出良好判断力的。

〔例证〕

What I need is sensible advice rather than useless complaints.
我需要的是合理的建议而不是无用的抱怨。
It is sensible to keep a good relationship with your roommates.
和室友保持良好关系是明智的。

牛津词典

adj.

合理的；理性的；明智的
based on reason rather than emotions
1. a rational argument/choice/decision
  合理的论点 / 选择 / 决定
2. rational analysis/thought
  有道理的分析 / 思考
3. There is no rational explanation for his actions.
  对他的所作所为无法作出合理的解释。
理智的；清醒的
able to think clearly and make decisions based on reason rather than emotions
1. No rational person would ever behave like that.
  有头脑的人都不会这样做。

柯林斯词典

ADJ-GRADED 理性的;合理的
Rationaldecisions and thoughts are based on reason rather than on emotion.
1. He's asking you to look at both sides of the case and come to a rational decision...
  他是要求你看到问题的两面后再作出理性的决定。
2. Mary was able to short-circuit her stress response by keeping her thoughts calm and rational.
  玛丽能够保持头脑清醒理智，因而迅速做出反应。
ADJ-GRADED 理性的;理智的
Arationalperson is someone who is sensible and is able to make decisions based on intelligent thinking rather than on emotion.
1. Did he come across as a sane rational person?...
  他看起来是一个正常而理智的人吗？
2. Rachel looked calmer and more rational now.
  雷切尔现在看上去更加平静、更加理智了。

英英释义

noun

an integer or a fraction
Synonym:rational number

adj

having its source in or being guided by the intellect (as distinguished from experience or emotion)
1. a rational analysis
of or associated with or requiring the use of the mind
1. intellectual problems
2. the triumph of the rational over the animal side of man
Synonym:intellectualnoetic
consistent with or based on or using reason
1. rational behavior
2. a process of rational inference
3. rational thought
capable of being expressed as a quotient of integers
1. rational numbers

双语例句

Rachel looked calmer and more rational now.
雷切尔现在看上去更加平静、更加理智了。
This is the simplest method to transfer Rational Projects.
这是转换Rational项目最简单的方法。
IBM Rational Portfolio Manager is a highly scalable tool for project and portfolio management.
IBMRationalPortfolioManager对项目和投资组合管理是高度可伸缩的工具。
This phenomenon has more to do with psychology than rational economics.
与理性经济学相比，心理学与这种现象的关系更大。
The salariat class are longing for a rational return in the commercial housing price.
工薪阶层都盼望高房价能合理归位。
As a source of knowledge the strength of rational statements lies in reliability and predictability, but not in breadth or applicability.
作为知识的来源之一，理论叙述的作用在于可靠性和预见性，而不在于广泛性和实用性。
The alphabet might be more rational if all the vowels came first
如果把所有的元音列在前面，字母表可能会更为合理一些。
Because they want to use a method authoring and configuration tool, they opt for IBM Rational Method Composer.
由于需要使用方法创作和配置工具，他们选择了IBMRationalMethodComposer。
Rational Method Composer's process authoring capability provides additional flexibility in carrying out such customization and management.
RationalMethodComposer的过程创造能力在执行定制和管理方面，提供了额外的灵活性。
Jim Heumann of IBM Rational describes a method to generate test cases from use cases and scenarios.
IBMRational的JimHeumann描述了一个方法，由用例和情境生成测试用例。