rational

The word “rational” has 3 syllables: ra-tion-al

It's pronounced as /ˈræʃənəl/

What is synonym and antonym for rational?

In the thesaurus, “rational” has 95 synonyms and 87 antonyms.

Here are synonyms and antonyms for rational along with examples of usage in sentences.

Synonyms for rational

a posteriori
a priori
actual
all there
analytic
analytical
balanced
brainy
calm
cerebral
certain
certified
circumspect
cogent
cognitional
cognitive
coherent
collected
colorable
commonsense
commonsensible
commonsensical
confirmed
consequent
convincing
cool
corroborated
credible
deductive
defendable
defensible
deliberate
discerning
discriminating
empiric
empirical
enlightened
far-sighted
firm
good
hard
highbrow
highbrowed
impartial
informed
intellectual
intelligent
judicious
just
justifiable
justified
knowing
levelheaded
logical
lucid
maintainable
mental
normal
objective
perspicacious
philosophic
plausible
practical
prudent
ratiocinative
real
reasonable
reasoned
reasoning
reflective
sagacious
sane
sensible
sober
solid
sound
stable
substantiated
supportable
sure
sustainable
syllogistic
synthetic
tenable
thinking
thoughtful
together
true
valid
validated
verified
well-advised
well-founded
well-grounded
wise

Antonyms for rational

absurd
agitated
brainless
careless
casuistic
casuistical
cockeyed
confused
crazy
daffy
dense
doltish
dopey
dopy
dorky
dull
dumb
eristic
eristical
excited
fallacious
false
fatuous
flimsy
foolish
groundless
half-baked
half-witted
harebrained
idiotic
illegitimate
illogical
implausible
incoherent
inconsequent
inconsequential
insane
invalid
irrational
looney
loony
mad
mindless
misguided
misleading
misled
nonrational
nonsensical
nonthinking
nonvalid
nutty
obtuse
preposterous
ridiculous
senseless
simpleminded
slow
sophistic
sophistical
specious
stupid
thickheaded
thoughtless
unarticulated
unbalanced
uncompelling
unconvincing
unfounded
uninformed
unintelligent
unjustified
unrealistic
unreasonable
unreasoned
unreasoning
unscientific
unsound
unstable
unsubstantiated
unsupported
unsystematic
unthinking
unwarranted
unwise
weak
weak-minded
witless

Meanings of rational

noun
1. A rational number: a number that can be expressed as the quotient of two integers.
2. The breastplate worn by Israelite high priests.
adjective
1. Capable of reasoning.
2. Logically sound; not contradictory or otherwise absurd.
3. (of a person or personal characteristics) Healthy or balanced intellectually; exhibiting reasonableness.
4. Of a number, capable of being expressed as the ratio of two integers.
5. Of an algebraic expression, capable of being expressed as the ratio of two polynomials.
6. Expressing the type, structure, relations, and reactions of a compound; graphic; said of formulae.
7. Expressing a physical object.

Example Sentences

It’s important to make rational decisions when dealing with finances.
She offered a rational explanation for the unexpected delay.
His rational approach helped resolve the conflict quickly.
The debate required a rational analysis of the data presented.
It’s difficult to think rational thoughts when you’re feeling emotional.

On this page you'll find 182 synonyms, antonyms, or another words to rational, such as: a posteriori, a priori, absurd, actual, agitated, all there, analytic.

Make sure to choose synonyms and antonyms that are appropriate for the context of the sentence.