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Criminal in Irish (coiriúil): Meaning, Forms, Examples

Other uses of ‘coiriúil’: culpable

The Irish for criminal is coiriúil: gníomh coiriúil, a criminal action.
Updated October 2026Report a mistake

How to say “criminal” in Irish

Irish:
coiriúil
English:
criminal, culpable
Word type:
adjective
More criminal:
níos coiriúla
Most criminal:
is coiriúla
Plural:
coiriúla
Pronunciation:
“KIR-oo-il”  /ˈkɪɾʲuːlʲ/

What does “coiriúil” mean?

“Coiriúil” has two alternative meanings. The most common comes first.

criminal
Relating to crime or breaking the law.Also: illegal, unlawful, felonious.
1 other meaning: culpable
2culpable
Deserving blame for doing wrong.Also: guilty, blameworthy.

“Coiriúil” after a noun

An Irish adjective comes after its noun. Here is coiriúil after gníomh (action, masculine), after cúirt (court, feminine) and after a plural.

after a masculine noungníomh coiriúila criminal action
after a feminine nouncúirt choiriúila criminal court
after a plural noungníomhartha coiriúlacriminal actions

séimhiú (the h) the ending

feminine
cúirtcourt
+
coiriúilcriminal
=
cúirt choiriúila criminal court

After a feminine noun the adjective gets a séimhiú, an h after its first letter: cúirt choiriúil. After a masculine noun it stays as it is: gníomh coiriúil.

plural
gníomharthaactions
+
coiriúlacriminal, plural
=
gníomhartha coiriúlacriminal actions

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

More criminal, most criminal, very criminal

níosmore
+
coiriúlacriminal
=
níos coiriúlamore criminal
ismost
+
coiriúlacriminal
=
is coiriúlamost criminal
more criminalníos coiriúlain the past tense: ní ba choiriúla
most criminalis coiriúlain the past tense: ba choiriúla
as criminal aschomh coiriúil leno change after chomh
very criminalan-choiriúilan- lenites, except d, t and s
too criminalróchoiriúilró- lenites

“Coiriúil” in a sentence: Irish examples

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

Is gníomh coiriúil é sin.
That is a criminal act.
Bhí sí os comhair na cúirte i gcás coiriúil.
She was before the court in a criminal case.
Tá na dreamanna coiriúla seo contúirteach.
These criminal gangs are dangerous.
Tá an rud a rinne sé coiriúil.
What he did is criminal.

Other adjectives in Irish

More everyday Irish adjectives to learn next.

Criminal in Irish: frequently asked questions

What is the Irish for criminal?

The Irish for criminal is coiriúil (pronounced “KIR-oo-il”). It comes after the noun: gníomh coiriúil, a criminal action; cúirt choiriúil, a criminal court.

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

níos coiriúla is more criminal and is coiriúla is most criminal. In the past tense they become ní ba choiriúla and ba choiriúla.

Why does coiriúil become choiriúil?

After a feminine singular noun an adjective is lenited: it gets an h after its first letter. So cúirt choiriúil (a criminal court) but gníomh coiriúil (a criminal action), because gníomh is masculine.

What is the plural of coiriúil?

With a plural noun coiriúil becomes coiriúla: gníomhartha coiriúla, cúirteanna coiriúla.

How do you say very criminal in Irish?

an-choiriúil. Too criminal is róchoiriúil, and as criminal as is chomh coiriúil le.

Does coiriúil have more than one meaning?

Yes. Coiriúil can mean criminal or culpable, depending on context; the first is the most common.

What is the difference between 'coiriúil' and 'mídhleathach'?

'Coiriúil' means criminal, involving a crime, as in 'dlí coiriúil'. 'Mídhleathach' simply means illegal or not allowed by law.

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