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

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

How to say “certainty” in Irish

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

What does “deimhne” mean?

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

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

“Deimhne” with the article

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

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

“Deimhne” in a sentence: Irish examples

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

Níl deimhne ar bith agam faoi sin.
I'm not at all certain about that.
Tá an deimhne sin ag teastáil uainn.
We need that certainty.
Ní féidir é a rá le deimhne.
It can't be said with certainty.
Bhí easpa deimhne sa tuarascáil.
There was a lack of certainty in the report.
Labhair sí le deimhne iomlán.
She spoke with complete certainty.
Tá deimhne ann go dtiocfaidh sé.
It is certain that he will come.
Cuireann a deimhne iontas orm.
Her certainty surprises me.

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 deimhne (pronounced “DEV-nyuh”). It’s a feminine noun.

How do you pronounce deimhne in Irish?

Deimhne is said like “DEV-nyuh” (IPA /ˈdʲevʲnʲə/).

Does deimhne have a plural?

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

Why does deimhne change to dheimhne or ndeimhne?

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

What is the difference between deimhne and cinnteacht?

Both mean certainty; cinnteacht is more common in everyday speech, while deimhne is somewhat more formal or literary.

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