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Relativity in Irish (Coibhneasacht): Meaning, Pronunciation, Usage

‘coibhneasacht’ also means: relativism

The Irish for relativity is coibhneasacht, a feminine noun (plural coibhneasachtaí).
Updated October 2026Report a mistake

How to say “relativity” in Irish

Irish:
coibhneasacht
English:
relativity, relativism
Word type:
noun
Gender:
feminine, third declension
Pronunciation:
“KIV-nyass-ukht”  /ˈkɪvʲnʲəsəxt̪ˠ/
Various forms
Plural:
coibhneasachtaí (relativities)
Genitive singular:
coibhneasachta, na coibhneasachta (e.g. teoiric na coibhneasachta, the theory of relativity)
Genitive plural:
coibhneasachtaí, na gcoibhneasachtaí (e.g. staidéar na gcoibhneasachtaí, the study of the relativities)

What does “coibhneasacht” mean?

“Coibhneasacht” has two alternative meanings. The most common comes first.

relativity
The state of being relative, especially in physics, Einstein's theory of how space and time depend on the observer.Also: theory of relativity, relativeness.
1 other meaning: relativism
2relativism
The philosophical view that truth or values are relative to the person or culture rather than absolute.Also: moral relativism.

“Coibhneasacht” with the article

The plural of relativity in Irish is coibhneasachtaí. Here is coibhneasacht after the article (an t-alt), in the singular and the plural.

an choibhneasacht
the relativity
Lenition: c becomes ch after an (feminine noun)
na coibhneasachtaí
the relativities
Plural: no change after na

“Coibhneasacht” in a sentence: Irish examples

Common Irish sentences using coibhneasacht, the Irish word for relativity.

D'fhoilsigh Einstein teoiric na coibhneasachta.
Einstein published the theory of relativity.
Tá an choibhneasacht deacair le tuiscint.
Relativity is hard to understand.
Rinne mé staidéar ar an gcoibhneasacht ar an ollscoil.
I studied relativity at university.
Labhair an léachtóir faoi choibhneasacht ghinearálta inniu.
The lecturer spoke about general relativity today.
Ní chreideann sí i gcoibhneasacht mhorálta.
She doesn't believe in moral relativism.
Is cuid thábhachtach den fhisic í an choibhneasacht.
Relativity is an important part of physics.
Tá leabhar maith agam faoi choibhneasacht speisialta.
I have a good book about special relativity.

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Relativity in Irish: frequently asked questions

What is the Irish for relativity?

The Irish for relativity is coibhneasacht (pronounced “KIV-nyass-ukht”). It’s a feminine noun and the plural is coibhneasachtaí. Depending on context it can also mean relativism.

How do you pronounce coibhneasacht in Irish?

Coibhneasacht is said like “KIV-nyass-ukht” (IPA /ˈkɪvʲnʲəsəxt̪ˠ/).

What is the plural of relativity in Irish?

The plural of coibhneasacht is coibhneasachtaí; with the article, na coibhneasachtaí means “the relativities”. The genitive plural is coibhneasachtaí, as in staidéar na gcoibhneasachtaí (the study of the relativities).

Does coibhneasacht have more than one meaning?

Yes. Coibhneasacht can mean relativity or relativism, depending on context; the first is the most common.

Why does coibhneasacht change to choibhneasacht or gcoibhneasacht?

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

How is 'coibhneasacht' related to 'coibhneas'?

'Coibhneas' means relation or proportion, and the adjective 'coibhneasta' means relative; 'coibhneasacht' is the abstract noun, relativity.

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