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Formal in Irish (foirmiúil): Meaning, Forms, Examples

Other uses of ‘foirmiúil’: formal (language)

The Irish for formal is foirmiúil: cruinniú foirmiúil, a formal meeting.
Updated October 2026Report a mistake

How to say “formal” in Irish

Irish:
foirmiúil
English:
formal, formal (language)
Word type:
adjective
More formal:
níos foirmiúla
Most formal:
is foirmiúla
Plural:
foirmiúla
Pronunciation:
“FIR-im-ool”  /ˈfˠɛɾʲəmʲuːlʲ/

What does “foirmiúil” mean?

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

formal
Following official rules, conventions or proper ceremony rather than being casual.Also: official, ceremonial, proper.
1 other meaning: formal (language)
2formal (language)
Describes careful, correct language or style used in official or polite situations.Also: formal, literary, elevated.

Other Irish adjectives for formal: foirmeálta (formal), formalach (formal)

“Foirmiúil” after a noun

An Irish adjective comes after its noun. Here is foirmiúil after cruinniú (meeting, masculine), after litir (letter, feminine) and after a plural.

after a masculine nouncruinniú foirmiúila formal meeting
after a feminine nounlitir fhoirmiúila formal letter
after a plural nouncruinnithe foirmiúlaformal meetings

séimhiú (the h) the ending

feminine
litirletter
+
foirmiúilformal
=
litir fhoirmiúila formal letter

After a feminine noun the adjective gets a séimhiú, an h after its first letter: litir fhoirmiúil. After a masculine noun it stays as it is: cruinniú foirmiúil.

plural
cruinnithemeetings
+
foirmiúlaformal, plural
=
cruinnithe foirmiúlaformal meetings

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

More formal, most formal, very formal

níosmore
+
foirmiúlaformal
=
níos foirmiúlamore formal
ismost
+
foirmiúlaformal
=
is foirmiúlamost formal

Tá an óráid seo níos foirmiúla ná an ceann eile. This speech is more formal than the other one.

more formalníos foirmiúlain the past tense: ní b'fhoirmiúla
most formalis foirmiúlain the past tense: ab fhoirmiúla
as formal aschomh foirmiúil leno change after chomh
very formalan-fhoirmiúilan- lenites, except d, t and s
too formalrófhoirmiúilró- lenites

“Foirmiúil” in a sentence: Irish examples

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

Bhí cruinniú foirmiúil againn inné.
We had a formal meeting yesterday.
Fuair mé litir fhoirmiúil ón mbanc.
I got a formal letter from the bank.
Caitheann siad éadaí foirmiúla ag an obair.
They wear formal clothes at work.
Tá an óráid seo níos foirmiúla ná an ceann eile.
This speech is more formal than the other one.
Tá an dinnéar anocht an-fhoirmiúil.
The dinner tonight is very formal.

Other adjectives in Irish

More everyday Irish adjectives to learn next.

Formal in Irish: frequently asked questions

What is the Irish for formal?

The Irish for formal is foirmiúil (pronounced “FIR-im-ool”). It comes after the noun: cruinniú foirmiúil, a formal meeting; litir fhoirmiúil, a formal letter.

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

níos foirmiúla is more formal and is foirmiúla is most formal. In the past tense they become ní b'fhoirmiúla and ab fhoirmiúla.

Why does foirmiúil become fhoirmiúil?

After a feminine singular noun an adjective is lenited: it gets an h after its first letter. So litir fhoirmiúil (a formal letter) but cruinniú foirmiúil (a formal meeting), because cruinniú is masculine.

What is the plural of foirmiúil?

With a plural noun foirmiúil becomes foirmiúla: cruinnithe foirmiúla, litreacha foirmiúla.

How do you say very formal in Irish?

an-fhoirmiúil. Too formal is rófhoirmiúil, and as formal as is chomh foirmiúil le.

Does foirmiúil have more than one meaning?

Yes. Foirmiúil can mean formal or formal (language), depending on context; the first is the most common.

What is the opposite of 'foirmiúil'?

The opposite is 'neamhfhoirmiúil', meaning informal, as in 'comhrá neamhfhoirmiúil' (an informal conversation).

Is 'foirmiúil' the same as 'oifigiúil'?

Not quite: 'oifigiúil' means official, authorised by an authority, while 'foirmiúil' means formal in style or manner, for example 'éadaí foirmiúla' (formal clothes).

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