irrational

[ih-rash-uh-nl, -rash-nl] / ɪˈræʃ ə nl, -ˈræʃ nl /

ADJECTIVE

illogical, senseless

Synonyms

STRONGEST

aberrant absurd crazy foolish incoherent insane preposterous ridiculous stupid unreasonable unsound unwise wrong

STRONG

invalid loony raving silly wild

WEAK

brainless cockamamie delirious demented disconnected disjointed distraught fallacious flaky freaky injudicious kooky mad mindless nonsensical nutty off-the-wall reasonless sophistic specious unreasoning unstable unthinking wacky

Antonyms

STRONGEST

balanced logical rational realistic reasonable responsible sane sensible serious smart sound thoughtful well wise

WEAK

reflective stable

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

“I couldn’t spend a lot of time talking to the irrationals, the person who really fought against this whole idea,” he says.

From New York Times • Nov. 30, 2021

The irrationals occurred and reoccurred in all sorts of geometrical constructions.

From "Zero: The Biography of a Dangerous Idea" by Charles Seife

Kronecker hated the irrationals, but they take up all the space in the number line.

From "Zero: The Biography of a Dangerous Idea" by Charles Seife

To keep these horrible numbers from ruining the Pythagorean doctrine, the irrationals were kept secret.

From "Zero: The Biography of a Dangerous Idea" by Charles Seife

Indeed, over time the Greeks reluctantly admitted the irrationals to the realm of numbers.

From "Zero: The Biography of a Dangerous Idea" by Charles Seife

Vocabulary lists containing irrational

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