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Rational

/ˈɹæʃ(ə)nəl/

A rational number: a number that can be expressed as the quotient of two integers.

Full Dictionary Entry

📖 Definitions of "Rational"

noun

1
A rational number: a number that can be expressed as the quotient of two integers.
"The quotient of two rationals is again a rational."

adjective

1
Capable of reasoning.
"Man is a rational creature."
2
Logically sound; not contradictory or otherwise absurd.
"His statements were quite rational."
3
(of a person or personal characteristics) Healthy or balanced intellectually; exhibiting reasonableness.
"rational conduct"
4
Of a number, capable of being expressed as the ratio of two integers.
"¾ is a rational number, but √2 is an irrational number."

🔄 Synonyms of "Rational"

9 synonyms found via WordNet and Google Books.

Word	Definition
intelligentnoun	Of high or especially quick cognitive capacity, bright.
mentalnoun	(relational) Of or relating to the mind or specifically the total emotional and intellectual response of an individual to external reality.
reasonable	Not excessive or immoderate; within due limits; proper.
intellectualnoun	Endowed with intellect; having a keen sense of understanding; having the capacity for higher forms of knowledge or thought; characterized by intelligence or cleverness
coherent	Orderly, logical and consistent.
logical	Reasonable.
sanenoun	Mentally sound; possessing a rational mind; having the mental faculties in such condition as to be able to anticipate and judge the effect of one's actions in an ordinary manner.
demythologized	having mythical elements removed
lucidnoun	Clear; easily understood.

↔️ Antonyms of "Rational"

Words with the opposite meaning.

Word	Definition
irrationalnoun	Not rational; unfounded, nonsensical or wrong-headed.

💡 Words with a Similar Meaning to "Rational"

Found via reverse dictionary — words that share a conceptual meaning.

Word	Definition
reasonable	Not excessive or immoderate; within due limits; proper.
sanenoun	Mentally sound; possessing a rational mind; having the mental faculties in such condition as to be able to anticipate and judge the effect of one's actions in an ordinary manner.
logical	Reasonable.
reasoningnoun	(uncountable) The deduction of inferences or interpretations from premises, abstract thought, ratiocination; (countable) any instance of this, especially as a process leading to an action, motive.
intellectual	Endowed with intellect; having a keen sense of understanding; having the capacity for higher forms of knowledge or thought; characterized by intelligence or cleverness
thinkingnoun	Thought; verbal noun of think.
mental	(relational) Of or relating to the mind or specifically the total emotional and intellectual response of an individual to external reality.
intelligent	Of high or especially quick cognitive capacity, bright.
coherent	Orderly, logical and consistent.
lucid	Clear; easily understood.
demythologized	having mythical elements removed
reasonedverb	based on reasoning; being the result of logical thought
right-thinking	In agreement on moral positions.
rationalisedverb	Reorganised, made more efficient.
sensible	Acting with or showing good sense; able to make good judgements based on reason or wisdom, or reflecting such ability.
rationalizeverb	To justify a discreditable act, or irrational behaviour.
reasonablenessnoun	(uncountable) The state or characteristic of being reasonable.
wise	Showing good judgement or the benefit of experience.
rationalenoun	An explanation of the basis or fundamental reasons for something.
meaningful	Having meaning, significant.