HeyRua Get the app

Eternity in Irish (Síoraíocht): Meaning, Pronunciation, Usage

The Irish for eternity is síoraíocht, a feminine noun.
Updated October 2026Report a mistake

How to say “eternity” in Irish

Irish:
síoraíocht
English:
eternity
Word type:
noun
Gender:
feminine, third declension
Pronunciation:
“SHEER-ee-ukht”  /ˈʃiːɾˠiːəxt̪ˠ/
Various forms
Genitive singular:
síoraíochta, na síoraíochta (e.g. tús na síoraíochta, the beginning of eternity)

What does “síoraíocht” mean?

eternity
Time without beginning or end, or endless existence, especially the life after death.Also: everlastingness, perpetuity, eternal life.

“Síoraíocht” with the article

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

an tsíoraíocht
the eternity
Feminine nouns take t before s after an

“Síoraíocht” in a sentence: Irish examples

Common Irish sentences using síoraíocht, the Irish word for eternity.

Creideann sé go mairfidh an t-anam go síoraíocht.
He believes the soul will live for eternity.
Bhí an tsíoraíocht ina hábhar cainte ag an sagart.
Eternity was the priest's topic.
Mhothaigh an fanacht sin cosúil le síoraíocht.
That wait felt like an eternity.
Smaoinigh sé ar cheist na síoraíochta.
He thought about the question of eternity.
Beidh siad le chéile ar feadh na síoraíochta.
They will be together for all eternity.
Ní féidir an tsíoraíocht a thuiscint i gceart.
Eternity cannot be properly understood.
Is síoraíocht í uair an chloig sa scrúdú.
An hour in the exam is an eternity.

Other nouns in Irish

More everyday Irish nouns to learn next.

Eternity in Irish: frequently asked questions

What is the Irish for eternity?

The Irish for eternity is síoraíocht (pronounced “SHEER-ee-ukht”). It’s a feminine noun.

How do you pronounce síoraíocht in Irish?

Síoraíocht is said like “SHEER-ee-ukht” (IPA /ˈʃiːɾˠiːəxt̪ˠ/).

Does síoraíocht have a plural?

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

Why does síoraíocht change to shíoraíocht?

After words like mo (my) and do (your) the first letter is lenited: mo shíoraíocht. After ár (our) it stays ár síoraíocht, because s does not take eclipsis.

How do I say 'forever' using this word?

You can say 'go síoraí' (forever, eternally) using the adjective, or 'ar feadh na síoraíochta' (for all eternity).

Learn Irish by
actually speaking it

Learn everyday Irish words like síoraíocht through guided conversation with Rua.

7-day free trial. Cancel anytime.

The HeyRua app home screen