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Illogical in Irish (míloighciúil): Meaning, Forms, Examples

The Irish for illogical is míloighciúil: fear míloighciúil, an illogical man.
Updated October 2026Report a mistake

How to say “illogical” in Irish

Irish:
míloighciúil
English:
illogical
Word type:
adjective
More illogical:
níos míloighciúla
Most illogical:
is míloighciúla
Plural:
míloighciúla
Pronunciation:
“mee-LY-kyoo-il”  /ˈmʲiːˌlˠəicuːlʲ/

What does “míloighciúil” mean?

illogical
Not following logic or sensible reasoning.Also: unreasonable, irrational, not logical.

“Míloighciúil” after a noun

An Irish adjective comes after its noun. Here is míloighciúil after fear (man, masculine), after bean (woman, feminine) and after a plural.

after a masculine nounfear míloighciúilan illogical man
after a feminine nounbean mhíloighciúilan illogical woman
after a plural nounfir mhíloighciúlaillogical men

séimhiú (the h) the ending

feminine
beanwoman
+
míloighciúilillogical
=
bean mhíloighciúilan illogical woman

After a feminine noun the adjective gets a séimhiú, an h after its first letter: bean mhíloighciúil. After a masculine noun it stays as it is: fear míloighciúil.

plural
firmen
+
míloighciúlaillogical, plural
=
fir mhíloighciúlaillogical men

With a plural noun the adjective takes its plural form, míloighciúla. It also gets an h after a plural that ends in a slender consonant: fir mhíloighciúla; after other plurals it does not: mná míloighciúla.

More illogical, most illogical, very illogical

níosmore
+
míloighciúlaillogical
=
níos míloighciúlamore illogical
ismost
+
míloighciúlaillogical
=
is míloighciúlamost illogical

Bhí a argóint níos míloighciúla ná mo cheann féin. His argument was more illogical than mine.

more illogicalníos míloighciúlain the past tense: ní ba mhíloighciúla
most illogicalis míloighciúlain the past tense: ba mhíloighciúla
as illogical aschomh míloighciúil leno change after chomh
very illogicalan-mhíloighciúilan- lenites, except d, t and s
too illogicalrómhíloighciúilró- lenites

“Míloighciúil” in a sentence: Irish examples

With a masculine noun, a feminine noun, a plural, a comparison and on its own.

Is smaoineamh míloighciúil é sin.
That is an illogical idea.
Thug sí freagra míloighciúil ar an gceist.
She gave an illogical answer to the question.
Rinne siad cinntí míloighciúla.
They made illogical decisions.
Bhí a argóint níos míloighciúla ná mo cheann féin.
His argument was more illogical than mine.
Tá an plean sin míloighciúil.
That plan is illogical.

Other adjectives in Irish

More everyday Irish adjectives to learn next.

Illogical in Irish: frequently asked questions

What is the Irish for illogical?

The Irish for illogical is míloighciúil (pronounced “mee-LY-kyoo-il”). It comes after the noun: fear míloighciúil, an illogical man; bean mhíloighciúil, an illogical woman.

How do you say more illogical and most illogical in Irish?

níos míloighciúla is more illogical and is míloighciúla is most illogical. In the past tense they become ní ba mhíloighciúla and ba mhíloighciúla.

Why does míloighciúil become mhíloighciúil?

After a feminine singular noun an adjective is lenited: it gets an h after its first letter. So bean mhíloighciúil (an illogical woman) but fear míloighciúil (an illogical man), because fear is masculine.

What is the plural of míloighciúil?

With a plural noun míloighciúil becomes míloighciúla: fir mhíloighciúla, mná míloighciúla. After a plural that ends in a slender consonant it is lenited as well.

How do you say very illogical in Irish?

an-mhíloighciúil. Too illogical is rómhíloighciúil, and as illogical as is chomh míloighciúil le.

What is the opposite of 'míloighciúil'?

The opposite is 'loighciúil', meaning logical; 'mí-' is a negative prefix like English 'il-'.

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