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Definitive in Irish (deifnídeach): Meaning, Forms, Examples

The Irish for definitive is deifnídeach: freagra deifnídeach, a definitive answer.
Updated October 2026Report a mistake

How to say “definitive” in Irish

Irish:
deifnídeach
English:
definitive
Word type:
adjective
More definitive:
níos deifnídí
Most definitive:
is deifnídí
Plural:
deifnídeacha
Pronunciation:
“DEF-nee-jukh”  /ˈdʲɛfʲnʲiːdʲəx/

What does “deifnídeach” mean?

definitive
Final and conclusive, settling a matter so it need not be decided again.Also: conclusive, final, authoritative.

“Deifnídeach” after a noun

An Irish adjective comes after its noun. Here is deifnídeach after freagra (answer, masculine), after tuairim (opinion, feminine) and after a plural.

after a masculine nounfreagra deifnídeacha definitive answer
after a feminine nountuairim dheifnídeacha definitive opinion
after a plural nounfreagraí deifnídeachadefinitive answers

séimhiú (the h) the ending

feminine
tuairimopinion
+
deifnídeachdefinitive
=
tuairim dheifnídeacha definitive opinion

After a feminine noun the adjective gets a séimhiú, an h after its first letter: tuairim dheifnídeach. After a masculine noun it stays as it is: freagra deifnídeach.

plural
freagraíanswers
+
deifnídeachadefinitive, plural
=
freagraí deifnídeachadefinitive answers

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

More definitive, most definitive, very definitive

níosmore
+
deifnídídefinitive
=
níos deifnídímore definitive
ismost
+
deifnídídefinitive
=
is deifnídímost definitive

Tá an tuarascáil seo níos deifnídí ná an ceann eile. This report is more definitive than the other one.

more definitiveníos deifnídíin the past tense: ní ba dheifnídí
most definitiveis deifnídíin the past tense: ba dheifnídí
as definitive aschomh deifnídeach leno change after chomh
very definitivean-deifnídeachan- lenites, except d, t and s
too definitiveródheifnídeachró- lenites

“Deifnídeach” in a sentence: Irish examples

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

Thug sé freagra deifnídeach ar an gceist.
He gave a definitive answer to the question.
Seo é an leagan deifnídeach den scéal.
This is the definitive version of the story.
Níl freagraí deifnídeacha againn fós.
We do not have definitive answers yet.
Tá an tuarascáil seo níos deifnídí ná an ceann eile.
This report is more definitive than the other one.
Tá an toradh deifnídeach anois.
The result is definitive now.

Other adjectives in Irish

More everyday Irish adjectives to learn next.

Definitive in Irish: frequently asked questions

What is the Irish for definitive?

The Irish for definitive is deifnídeach (pronounced “DEF-nee-jukh”). It comes after the noun: freagra deifnídeach, a definitive answer; tuairim dheifnídeach, a definitive opinion.

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

níos deifnídí is more definitive and is deifnídí is most definitive. In the past tense they become ní ba dheifnídí and ba dheifnídí.

Why does deifnídeach become dheifnídeach?

After a feminine singular noun an adjective is lenited: it gets an h after its first letter. So tuairim dheifnídeach (a definitive opinion) but freagra deifnídeach (a definitive answer), because freagra is masculine.

What is the plural of deifnídeach?

With a plural noun deifnídeach becomes deifnídeacha: freagraí deifnídeacha, tuairimí deifnídeacha.

How do you say very definitive in Irish?

an-deifnídeach. Too definitive is ródheifnídeach, and as definitive as is chomh deifnídeach le.

Is 'deifnídeach' the same as 'cinnte'?

Not quite: 'cinnte' means certain or sure, while 'deifnídeach' means definitive or conclusive, as in 'freagra deifnídeach', a definitive answer.

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