Definify.com
Webster 1913 Edition
Rational
Ra′tion-al
(răsh′ŭn-al)
, Adj.
1.
Relating to the reason; not physical; mental.
Moral philosophy was his chiefest end; for the
rational
, the natural, and mathematics . . . were but simple pastimes in comparison of the other. Sir T. North.
2.
Having reason, or the faculty of reasoning; endowed with reason or understanding; reasoning.
It is our glory and happiness to have a
rational
nature. Law.
3.
Agreeable to reason; not absurd, preposterous, extravagant, foolish, fanciful, or the like; wise; judicious;
as,
rational
conduct; a rational
man.4.
(Chem.)
Expressing the type, structure, relations, and reactions of a compound; graphic; – said of formulae. See under
Formula
. Rational horizon
. (Astron.)
See
– Horizon
, 2 (b)
. Rational quantity
(Alg.)
, one that can be expressed without the use of a radical sign, or in exact parts of unity; – opposed to
– irrational
or radical quantity
. Rational symptom
(Med.)
, one elicited by the statements of the patient himself and not as the result of a physical examination.
Syn. – Sane; sound; intelligent; reasonable; sensible; wise; discreet; judicious.
– Rational
, reasonable
. Rational has reference to reason as a faculty of the mind, and is opposed to irrational; as, a
In these cases the speculative reason is more particularly, referred to. Reasonable has reference to the exercise of this faculty for practical purposes, and means, governed or directed by reason; rational
being, a rational
state of mind, rational
views, etc. as,
. reasonable
desires or plans; a reasonable
charge; a reasonable
prospect of successWhat higher in her society thou find’st
Attractive, human,
Attractive, human,
rational
, love still. Milton.
A law may be
reasonable
in itself, although a man does not allow it, or does not know the reason of the lawgivers. Swift.
Ra′tion-al
,Noun.
A rational being.
Young.
Webster 1828 Edition
Rational
RA'TIONAL
,Adj.
1.
Having reason or the faculty of reasoning; endowed with reason; opposed to irrational; as, man is a rational being; brutes are not rational animals.It is our glory and happiness to have a rational nature.
2.
Agreeable to reason; opposed to absurd; as a rational conclusion or inference; rational conduct.3.
Agreeable to reason; not extravagant.4.
Acting in conformity to reason; wise; judicious; as a rational man.RA'TIONAL
,Noun.
Definition 2024
rațional
rațional
See also: rational
Romanian
Adjective
rațional m, n (feminine singular rațională, masculine plural raționali, feminine and neuter plural raționale)
Declension
declension of rațional
| singular | plural | ||||||
|---|---|---|---|---|---|---|---|
| masculine | neuter | feminine | masculine | neuter | feminine | ||
| nominative/ accusative |
indefinite | rațional | rațională | raționali | raționale | ||
| definite | raționalul | raționala | raționalii | raționalele | |||
| genitive/ dative |
indefinite | rațional | raționale | raționali | raționale | ||
| definite | raționalului | raționalei | raționalilor | raționalelor | |||
Antonyms
Adverb
rațional
Antonyms
- irațional
- nerațional