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Infinity in Irish (Infinid): Meaning, Pronunciation, Usage

The Irish for infinity is infinid, a feminine noun.
Updated October 2026Report a mistake

How to say “infinity” in Irish

Irish:
infinid
English:
infinity
Word type:
noun
Gender:
feminine
Pronunciation:
“IN-fin-id”  /ˈɪn̠ʲfʲɪn̠ʲɪdʲ/
Various forms
Genitive singular:
infinide, na hinfinide (e.g. siombail na hinfinide, the symbol of infinity)

What does “infinid” mean?

infinity
In mathematics and science, a quantity or point that is endlessly great, beyond any limit.Also: infinite, endlessness, limitlessness.

“Infinid” with the article

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

an infinid
the infinity
No change: feminine nouns starting with a vowel keep their form after an

“Infinid” in a sentence: Irish examples

Common Irish sentences using infinid, the Irish word for infinity.

Is coincheap deacair í an infinid.
Infinity is a difficult concept.
Téann an líne ar aghaidh go dtí an infinid.
The line continues to infinity.
Seo í siombail na hinfinide.
This is the symbol for infinity.
Ní uimhir í infinid.
Infinity is not a number.
Labhair an múinteoir faoin infinid sa rang matamaitice.
The teacher talked about infinity in maths class.
Claonann an fheidhm i dtreo na hinfinide.
The function tends towards infinity.
Bhí na daltaí ag smaoineamh ar an infinid.
The pupils were thinking about infinity.

Other nouns in Irish

More everyday Irish nouns to learn next.

Infinity in Irish: frequently asked questions

What is the Irish for infinity?

The Irish for infinity is infinid (pronounced “IN-fin-id”). It’s a feminine noun.

How do you pronounce infinid in Irish?

Infinid is said like “IN-fin-id” (IPA /ˈɪn̠ʲfʲɪn̠ʲɪdʲ/).

Does infinid have a plural?

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

Why does infinid sometimes have a t or h in front of it?

Irish nouns beginning with a vowel take a prefix after certain words: an infinid (the infinity), a hinfinid (her infinity), a n-infinid (their infinity).

Is 'infinid' the same as 'síoraíocht'?

No: 'infinid' is the technical, mathematical word for infinity, while 'síoraíocht' means eternity, endless time, as in religious or poetic language.

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