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.

Freight was another sector that some analysts said was subjected to irrational AI fears last week.

From MarketWatch

Knowing they’ve lost the chance at a fortune, people will sometimes take irrational risks to make it back.

From The Wall Street Journal

The stock market behaves a lot like a toddler: a short attention span, active imagination and some irrational fears.

From The Wall Street Journal

Just before Christmas, the court ruled that the government's assessment of damage to national security "should have been accepted by the coroner" unless it was plainly irrational or there was no supporting evidence.

From BBC

In the past week, the home secretary has announced a number of sweeping changes to policing, having described the current structures as "irrational".

From BBC

irrational

Example Sentences

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