illogical

When there's no good reason or explanation for something, don't fret; chances are it's illogical — meaning that it has no rational explanation behind it.

The word logic has origins in the Greek root logos meaning "reason, idea, or word." But slap the prefix il- in front of it, and suddenly the word reverses its meaning. Illogical? Check out other words with the same prefix, like illegitimate and illegal, and you'll quickly see that the prefixil- in front of a word starting in "l" means "not." Suddenly the meaning of illogical isn't quite so illogical after all, is it?

Definitions of illogical
1

adj lacking in correct logical relation

Synonyms:
unlogical
incoherent
without logical or meaningful connection
absurd
inconsistent with reason or logic or common sense
inconsequential
not following logically as a consequence
intuitive, nonrational, visceral
obtained through intuition rather than from reasoning or observation
irrational
not consistent with or using reason
unreasonable
not reasonable; not showing good judgment
Antonyms:
logical
capable of or reflecting the capability for correct and valid reasoning
analytic, analytical
of a proposition that is necessarily true independent of fact or experience
synthetic, synthetical
of a proposition whose truth value is determined by observation or facts
coherent, consistent, logical, ordered
marked by an orderly, logical, and aesthetically consistent relation of parts
dianoetic, discursive
proceeding to a conclusion by reason or argument rather than intuition
formal
logically deductive
ratiocinative
based on exact thinking
rational
consistent with or based on or using reason
reasonable, sensible
showing reason or sound judgment
show more antonyms...

adj lacking orderly continuity

Synonyms:
confused, disconnected, disjointed, disordered, garbled, scattered, unconnected
incoherent
without logical or meaningful connection

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