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Decisive in Irish (cinntitheach): Meaning, Forms, Examples

Other uses of ‘cinntitheach’: determinative · determiner (noun, masculine)

The Irish for decisive is cinntitheach: toradh cinntitheach, a decisive result.
Updated October 2026Report a mistake

How to say “decisive” in Irish

Irish:
cinntitheach
English:
decisive, determinative
Word type:
adjective
More decisive:
níos cinntithí
Most decisive:
is cinntithí
Plural:
cinntitheacha
Pronunciation:
“KIN-tee-hakh”  /ˈcɪnʲtʲihəx/

What does “cinntitheach” mean?

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

decisive
Settling a matter firmly or producing a definite result.Also: conclusive, determining, final.
1 other meaning: determinative
2determinative
Serving to determine or define something; in grammar, functioning as a determiner.Also: defining, determining.
Other entries for “cinntitheach”

The same spelling has its own page as:

“Cinntitheach” after a noun

An Irish adjective comes after its noun. Here is cinntitheach after toradh (result, masculine), after bean (woman, feminine) and after a plural.

after a masculine nountoradh cinntitheacha decisive result
after a feminine nounbean chinntitheacha decisive woman
after a plural nountorthaí cinntitheachadecisive results

séimhiú (the h) the ending

feminine
beanwoman
+
cinntitheachdecisive
=
bean chinntitheacha decisive woman

After a feminine noun the adjective gets a séimhiú, an h after its first letter: bean chinntitheach. After a masculine noun it stays as it is: toradh cinntitheach.

plural
torthaíresults
+
cinntitheachadecisive, plural
=
torthaí cinntitheachadecisive results

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

More decisive, most decisive, very decisive

níosmore
+
cinntithídecisive
=
níos cinntithímore decisive
ismost
+
cinntithídecisive
=
is cinntithímost decisive

Bhí an dara cluiche níos cinntithí ná an chéad cheann. The second game was more decisive than the first one.

more decisiveníos cinntithíin the past tense: ní ba chinntithí
most decisiveis cinntithíin the past tense: ba chinntithí
as decisive aschomh cinntitheach leno change after chomh
very decisivean-chinntitheachan- lenites, except d, t and s
too decisiveróchinntitheachró- lenites

“Cinntitheach” in a sentence: Irish examples

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

Ba é sin an toradh cinntitheach sa chluiche.
That was the decisive result in the game.
Bhí ról cinntitheach aici sa phlé.
She had a decisive role in the discussion.
Rinneadh roinnt cinntí cinntitheacha ag an gcruinniú.
Some decisive decisions were made at the meeting.
Bhí an dara cluiche níos cinntithí ná an chéad cheann.
The second game was more decisive than the first one.
Tá an fhianaise seo cinntitheach.
This evidence is conclusive.

Other adjectives in Irish

More everyday Irish adjectives to learn next.

Decisive in Irish: frequently asked questions

What is the Irish for decisive?

The Irish for decisive is cinntitheach (pronounced “KIN-tee-hakh”). It comes after the noun: toradh cinntitheach, a decisive result; bean chinntitheach, a decisive woman.

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

níos cinntithí is more decisive and is cinntithí is most decisive. In the past tense they become ní ba chinntithí and ba chinntithí.

Why does cinntitheach become chinntitheach?

After a feminine singular noun an adjective is lenited: it gets an h after its first letter. So bean chinntitheach (a decisive woman) but toradh cinntitheach (a decisive result), because toradh is masculine.

What is the plural of cinntitheach?

With a plural noun cinntitheach becomes cinntitheacha: torthaí cinntitheacha, mná cinntitheacha.

How do you say very decisive in Irish?

an-chinntitheach. Too decisive is róchinntitheach, and as decisive as is chomh cinntitheach le.

Does cinntitheach have more than one meaning?

Yes. Cinntitheach can mean decisive or determinative, depending on context; the first is the most common.

How is 'cinntitheach' different from 'cinnte'?

'Cinnte' means certain or sure, as in 'Tá mé cinnte', while 'cinntitheach' means decisive or determining, as in 'toradh cinntitheach'.

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