illogical

[ih-loj-i-kuhl] / ɪˈlɒdʒ ɪ kəl /

ADJECTIVE

not making sense

Synonyms

STRONGEST

absurd false groundless implausible inconsistent incorrect irrational irrelevant preposterous senseless unreasonable unscientific untenable

WEAK

casuistic cockeyed fallacious fatuous faulty hollow inconclusive incongruous inconsequent invalid mad meaningless not following nutty off the wall screwy self-contradictory sophistic sophistical specious spurious unconnected unproved unsound unsubstantial wacky without basis without foundation

Antonyms

STRONGEST

correct logical rational reasonable right sensible true wise

WEAK

meaningful

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.

Educational AI, he told journalist Taylor Lorenz, generated “false information” or “illogical questions, illogical texts.”

From Salon • Mar. 30, 2026

Immigration rights advocates called this claim “perverse” and illogical.

From Los Angeles Times • Mar. 24, 2026

For instance, Nvidia Chief Executive Officer Jensen Huang told a conference earlier this month that the idea that AI will replace software is “the most illogical thing in the world.”

From The Wall Street Journal • Feb. 26, 2026

He called the idea that AI would replace software companies “the most illogical thing in the world, and time will prove itself,” he said.

From MarketWatch • Feb. 4, 2026

My thoughts grew illogical and fuzzy, and I distantly realized that I might actually succeed at falling asleep.

From "Endangered" by Eliot Schrefer

illogical

Example Sentences

Related Words