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Antimatter in Irish (Frithdhamhna): Meaning, Pronunciation, Usage

The Irish for antimatter is frithdhamhna, a masculine noun (plural frithdhamhnaí).
Updated October 2026Report a mistake

How to say “antimatter” in Irish

Irish:
frithdhamhna
English:
antimatter
Word type:
noun
Gender:
masculine, fourth declension
Pronunciation:
“FRIH-gow-nuh”  /ˈfʲɾʲɪˌɣəunˠə/
Various forms
Plural:
frithdhamhnaí (antimatters)
Genitive singular:
frithdhamhna, an fhrithdhamhna (e.g. staidéar an fhrithdhamhna, the study of antimatter)
Genitive plural:
frithdhamhnaí, na bhfrithdhamhnaí (e.g. airíonna frithdhamhnaí éagsúla, properties of various antimatters)

What does “frithdhamhna” mean?

antimatter
Matter made up of antiparticles, which destroy ordinary matter when the two meet.Also: anti-matter, antiparticle matter.

“Frithdhamhna” with the article

The plural of antimatter in Irish is frithdhamhnaí. Here is frithdhamhna after the article (an t-alt), in the singular and the plural.

an frithdhamhna
the antimatter
No change after an
na frithdhamhnaí
the antimatters
Plural: no change after na

“Frithdhamhna” in a sentence: Irish examples

Common Irish sentences using frithdhamhna, the Irish word for antimatter.

Is cineál ábhair é frithdhamhna.
Antimatter is a kind of matter.
Scriosann an frithdhamhna an gnáthdhamhna nuair a bhuaileann siad.
Antimatter destroys ordinary matter when they meet.
Rinne na heolaithe taighde ar an bhfrithdhamhna.
The scientists did research on antimatter.
Tá méid beag frithdhamhna sa tsaotharlann sin.
There is a small amount of antimatter in that laboratory.
Is deacair frithdhamhna a stóráil.
Antimatter is hard to store.
Labhair an t-ollamh faoi fhrithdhamhna inniu.
The professor talked about antimatter today.
Cén fáth a bhfuil níos lú frithdhamhna sa chruinne?
Why is there less antimatter in the universe?

Other nouns in Irish

More everyday Irish nouns to learn next.

Antimatter in Irish: frequently asked questions

What is the Irish for antimatter?

The Irish for antimatter is frithdhamhna (pronounced “FRIH-gow-nuh”). It’s a masculine noun and the plural is frithdhamhnaí.

How do you pronounce frithdhamhna in Irish?

Frithdhamhna is said like “FRIH-gow-nuh” (IPA /ˈfʲɾʲɪˌɣəunˠə/).

What is the plural of antimatter in Irish?

The plural of frithdhamhna is frithdhamhnaí; with the article, na frithdhamhnaí means “the antimatters”. The genitive plural is frithdhamhnaí, as in airíonna frithdhamhnaí éagsúla (properties of various antimatters).

Why does frithdhamhna change to fhrithdhamhna or bhfrithdhamhna?

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

How is frithdhamhna formed?

It combines the prefix frith- (anti-, counter-) with damhna (matter, material), just as English adds anti- to matter.

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