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Theologian in Irish (Diagaire): Meaning, Pronunciation, Usage

The Irish for theologian is diagaire, a masculine noun (plural diagairí).
Updated October 2026Report a mistake

How to say “theologian” in Irish

Irish:
diagaire
English:
theologian
Word type:
noun
Gender:
masculine, fourth declension
Pronunciation:
“JEE-uh-gir-uh”  /ˈdʲiəɡəɾʲə/
Various forms
Plural:
diagairí (theologians)
Genitive singular:
diagaire, an diagaire (e.g. saothar an diagaire, the theologian's work)
Genitive plural:
diagairí, na ndiagairí (e.g. tuairimí na ndiagairí, the opinions of the theologians)

What does “diagaire” mean?

theologian
A person who studies or is an expert in theology, the study of God and religious belief.Also: divine, theology scholar.

“Diagaire” with the article

The plural of theologian in Irish is diagairí. Here is diagaire after the article (an t-alt), in the singular and the plural.

an diagaire
the theologian
No change after an
na diagairí
the theologians
Plural: no change after na

“Diagaire” in a sentence: Irish examples

Common Irish sentences using diagaire, the Irish word for theologian.

Is diagaire cáiliúil é an sagart sin.
That priest is a famous theologian.
Labhair an diagaire faoin gcreideamh aréir.
The theologian spoke about faith last night.
Léigh mé leabhar an diagaire inné.
I read the theologian's book yesterday.
Tháinig diagairí ó gach tír chuig an gcomhdháil.
Theologians from every country came to the conference.
Ní aontaíonn na diagairí ar an gceist sin.
The theologians don't agree on that question.
Ba mhaith le mo dheartháir a bheith ina dhiagaire.
My brother would like to be a theologian.
Bhí sé ina dhiagaire i Maigh Nuad ar feadh blianta.
He was a theologian in Maynooth for years.

Other nouns in Irish

More everyday Irish nouns to learn next.

Theologian in Irish: frequently asked questions

What is the Irish for theologian?

The Irish for theologian is diagaire (pronounced “JEE-uh-gir-uh”). It’s a masculine noun and the plural is diagairí.

How do you pronounce diagaire in Irish?

Diagaire is said like “JEE-uh-gir-uh” (IPA /ˈdʲiəɡəɾʲə/).

What is the plural of theologian in Irish?

The plural of diagaire is diagairí; with the article, na diagairí means “the theologians”. The genitive plural is diagairí, as in tuairimí na ndiagairí (the opinions of the theologians).

Why does diagaire change to dhiagaire or ndiagaire?

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

What is the difference between diagaire and diagacht?

Diagaire is the person, a theologian, while diagacht is the subject itself, theology.

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