Word · CEFR B1 · Frequency #3243
rational
理性的；合理的
based on reason or logic; sensible; reasonable
- 1.
Capable of reasoning.
有理性的
- 2.
Logically sound; not self-contradictory or otherwise absurd.
逻辑上合理的
- 3.
consistent with or based on or using reason
符合或基于理性或使用理性
- 4.
Healthy or balanced intellectually; exhibiting reasonableness.
理智的
- 5.
of or associated with or requiring the use of the mind
与思维相关或需要使用思维的
- 6.
Comprising, or expressible as, a ratio
比例上的
有理智的；神志正常的；有理数的；可表示为整数比的；有理性的；逻辑上合理的；符合或基于理性或使用理性
In use
It is important to make rational decisions based on facts rather than emotions.
She gave a rational explanation for her sudden resignation.
In a crisis, staying calm and rational can help solve problems more effectively.
rational behavior
a process of rational inference
rational thought
the triumph of the rational over the animal side of man
be rational
“rational”作形容词，常与系动词连用，表示“合理的”。
His decision was rational.
Connections
Collocations
- rational thought
- 理性思考
- We need to engage in rational thought to solve this problem.我们需要进行理性思考来解决这个问题。
- rational decision
- 理性决策
- She made a rational decision based on all the facts.她根据所有事实做出了理性决策。
- rational behavior
- 理性行为
- His rational behavior calmed everyone down.他的理性行为让大家都平静下来。
- rational explanation
- 合理解释
- The scientist provided a rational explanation for the phenomenon.科学家对这种现象给出了合理解释。
- rational numbers
- 有理数
- All integers are rational numbers.所有整数都是有理数。
- rational approach
Learner notes
Memory Tip
Rational 里有 ratio，有理数就是比例。
Context & Register
语域：neutral 常见场景：academic writing、rational argument、mathematics 该词多用于正式或学术场合，表示基于理性或逻辑，也可表示有理数。
Pronunciation & Spelling
Words like 'national' and 'fractional' rhyme exactly with 'rational' (same stressed vowel /æ/ and ending /ʃənəl/). 'Irrational' looks similar but has stress on the second syllable /ɪˈræʃənəl/, so it does not rhyme.
Usage priority
Collins 词频等级为 2，建议结合例句记忆，而不是只背中文释义。
Learn the forms together
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY.