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Certainty in Irish (Deimhneacht): Meaning, Pronunciation, Usage

The Irish for certainty is deimhneacht, a feminine noun.
Updated October 2026Report a mistake

How to say “certainty” in Irish

Irish:
deimhneacht
English:
certainty
Word type:
noun
Gender:
feminine
Pronunciation:
“DEV-nyukht”  /ˈdʲevʲnʲəxt/
Various forms
Genitive singular:
deimhneachta, na deimhneachta (e.g. easpa deimhneachta, lack of certainty)

What does “deimhneacht” mean?

certainty
The state of being sure or certain about something.Also: sureness, assurance, definiteness.

Other Irish words for certainty: áirithe (certainty), cinnteacht (certainty)

“Deimhneacht” with the article

Here is deimhneacht after the article (an t-alt).

an deimhneacht
the certainty
No change: d and t are not lenited after an

“Deimhneacht” in a sentence: Irish examples

Common Irish sentences using deimhneacht, the Irish word for certainty.

Níl deimhneacht ar bith faoin toradh fós.
There is no certainty at all about the result yet.
Theastaigh deimhneacht uaithi sula ndéanfadh sí cinneadh.
She wanted certainty before she would make a decision.
Labhair sé le deimhneacht iomlán.
He spoke with complete certainty.
Is deacair an deimhneacht a fháil sa cheist seo.
It is hard to get certainty on this question.
Bhí easpa deimhneachta ina glór.
There was a lack of certainty in her voice.
Ní féidir é a rá le deimhneacht.
It cannot be said with certainty.
Thug an tuarascáil deimhneacht don phobal.
The report gave the public certainty.

Other nouns in Irish

More everyday Irish nouns to learn next.

Certainty in Irish: frequently asked questions

What is the Irish for certainty?

The Irish for certainty is deimhneacht (pronounced “DEV-nyukht”). It’s a feminine noun.

How do you pronounce deimhneacht in Irish?

Deimhneacht is said like “DEV-nyukht” (IPA /ˈdʲevʲnʲəxt/).

Does deimhneacht have a plural?

No plural form is given for deimhneacht in the standard. Many abstract and mass nouns in Irish have no plural.

Why does deimhneacht change to dheimhneacht or ndeimhneacht?

Irish changes the start of some words after certain words. After mo (my) deimhneacht becomes mo dheimhneacht (lenition), and after ár (our) or i (in) it becomes ár ndeimhneacht (eclipsis).

What is the difference between 'deimhneacht' and 'cinnteacht'?

Both mean certainty; 'cinnteacht' is the more common everyday word, while 'deimhneacht' is somewhat more formal and is linked to 'deimhin' (sure) and 'deimhniú' (confirmation).

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