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Counterforce in Irish (Frithfhórsa): Meaning, Pronunciation, Usage

The Irish for counterforce is frithfhórsa, a masculine noun (plural frithfhórsaí).
Updated October 2026Report a mistake

How to say “counterforce” in Irish

Irish:
frithfhórsa
English:
counterforce
Word type:
noun
Gender:
masculine
Pronunciation:
“FRIH-oar-suh”  /ˈfʲɾʲɪhoːɾˠsˠə/
Various forms
Plural:
frithfhórsaí (counterforces)
Genitive singular:
frithfhórsa, an fhrithfhórsa (e.g. neart an fhrithfhórsa, the strength of the counterforce)
Genitive plural:
frithfhórsaí, na bhfrithfhórsaí (e.g. éifeacht na bhfrithfhórsaí, the effect of the counterforces)

What does “frithfhórsa” mean?

counterforce
A force that acts against or opposes another force.Also: opposing force, counteracting force.

“Frithfhórsa” with the article

The plural of counterforce in Irish is frithfhórsaí. Here is frithfhórsa after the article (an t-alt), in the singular and the plural.

an frithfhórsa
the counterforce
No change after an
na frithfhórsaí
the counterforces
Plural: no change after na

“Frithfhórsa” in a sentence: Irish examples

Common Irish sentences using frithfhórsa, the Irish word for counterforce.

Is frithfhórsa í an fhrithchuimilt.
Friction is a counterforce.
Chuir an frithfhórsa moill ar an gcarr.
The counterforce slowed the car down.
Tomhais neart an fhrithfhórsa sa turgnamh.
Measure the strength of the counterforce in the experiment.
Bíonn frithfhórsaí ag obair ar gach réad.
Counterforces act on every object.
Tá frithfhórsa láidir i gcoinne na gaoithe.
There is a strong counterforce against the wind.
Mhínigh an múinteoir cad is frithfhórsa ann.
The teacher explained what a counterforce is.
Is ionann an fórsa agus an frithfhórsa.
The force and the counterforce are equal.

Other nouns in Irish

More everyday Irish nouns to learn next.

Counterforce in Irish: frequently asked questions

What is the Irish for counterforce?

The Irish for counterforce is frithfhórsa (pronounced “FRIH-oar-suh”). It’s a masculine noun and the plural is frithfhórsaí.

How do you pronounce frithfhórsa in Irish?

Frithfhórsa is said like “FRIH-oar-suh” (IPA /ˈfʲɾʲɪhoːɾˠsˠə/).

What is the plural of counterforce in Irish?

The plural of frithfhórsa is frithfhórsaí; with the article, na frithfhórsaí means “the counterforces”. The genitive plural is frithfhórsaí, as in éifeacht na bhfrithfhórsaí (the effect of the counterforces).

Why does frithfhórsa change to fhrithfhórsa or bhfrithfhórsa?

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

How is frithfhórsa formed?

It is the prefix frith- (counter, anti) added to fórsa (force), which is lenited after the prefix: frithfhórsa.

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