highly illogical

Defies all reason

Highly illogical describes reasoning or behavior that flagrantly violates logic or common sense.

The phrase gained cultural resonance through Mr.

Spock in *Star Trek*, who used it to express Vulcan bewilderment at human irrationality: Emotions are highly illogical, Captain.

Outside that context, it often carries a faintly ironic or nerdy tone.

Related

makes no sense · Star Trek · raised eyebrow · fallacy · reasoning · senseless · ridiculous · preposterous · unreasonable · flawed · contradictory · paradox · mental gymnastics · foolish · mindless · eyebrow · emotion · cold

Opposites
logical soundness

highly illogicalcoherent

Logically connected throughout

rational · logical · sound · valid · reasoned

reasonableness

highly illogicalreasonable

Showing sound judgment

sensible · rational · judicious · sane · level-headed

logical coherence

highly illogicalcoherent

Logically connected throughout

airtight · rigorous · cogent · watertight · methodical

Family

high, highly, higher, highest, highness, logic, logical, logically, illogical

Familiarity
Top 500,000
Profile
Known to kids · Used worldwide · Timeless · Abstract · Everyday, not technical · Rated G