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rational
[ rash-uh-nl, rash-nl ]
adjective
- agreeable to reason; reasonable; sensible:
a rational plan for economic development.
- having or exercising reason, sound judgment, or good sense:
a calm and rational negotiator.
Synonyms: sagacious, judicious, wise, intelligent
Antonyms: stupid
The patient appeared perfectly rational.
Antonyms: insane
- endowed with the faculty of reason:
rational beings.
- of, relating to, or constituting reasoning powers:
the rational faculty.
- proceeding or derived from reason or based on reasoning:
a rational explanation.
- Mathematics.
- capable of being expressed exactly by a ratio of two integers.
- (of a function) capable of being expressed exactly by a ratio of two polynomials.
- Classical Prosody. capable of measurement in terms of the metrical unit or mora.
noun
- Mathematics. rational number.
rational
/ ˈræʃənəl /
adjective
- using reason or logic in thinking out a problem
- in accordance with the principles of logic or reason; reasonable
- of sound mind; sane
the patient seemed quite rational
- endowed with the capacity to reason; capable of logical thought
man is a rational being
- maths expressible as a ratio of two integers or polynomials
a rational number; a rational function
noun
- maths a rational number
Derived Forms
- ˈrationally, adverb
- ˈrationalness, noun
Other Words From
- ra·tion·al·ly adverb
- ra·tion·al·ness noun
- an·ti·ra·tion·al adjective
- hy·per·ra·tion·al adjective
- non·ra·tion·al adjective
- o·ver·ra·tion·al adjective
- pre·ra·tion·al adjective
- qua·si-ra·tion·al adjective
- trans·ra·tion·al adjective
- ul·tra·ra·tion·al adjective
- un·ra·tion·al adjective
Word History and Origins
Word History and Origins
Origin of rational1
Synonym Study
Example Sentences
In a rational world, this idea would have been consigned to the dumpster long ago, and forever.
Younger people are taking a more rational and nuanced review of all energy, and they’re coming to the same conclusion: Yeah, nuclear checks all the boxes,” Pittman said.
If I need to have ‘hope’ to motivate me, what will I do when I see no rational reason for hope?
In too many ways, they appear locked in an echo chamber, largely talking to each other and convincing themselves that all intelligent and rational people agree with them.
They try to figure out if there are rational reasons people worry about immigration or fail to notice improvements in the economy.
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