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Hereditary in Irish (oidhreachtúil): Meaning, Forms, Examples

The Irish for hereditary is oidhreachtúil: galar oidhreachtúil, a hereditary disease.
Updated October 2026Report a mistake

How to say “hereditary” in Irish

Irish:
oidhreachtúil
English:
hereditary
Word type:
adjective
More hereditary:
níos oidhreachtúla
Most hereditary:
is oidhreachtúla
Plural:
oidhreachtúla
Pronunciation:
“IR-ukh-too-il”  /ˈəiɾʲəxt̪ˠuːlʲ/

What does “oidhreachtúil” mean?

hereditary
Passed down from parents to children, by inheritance or through the genes.Also: inherited, genetic, inheritable.

“Oidhreachtúil” after a noun

An Irish adjective comes after its noun. Here is oidhreachtúil after galar (disease, masculine), after tréith (trait, feminine) and after a plural.

after a masculine noungalar oidhreachtúila hereditary disease
after a feminine nountréith oidhreachtúila hereditary trait
after a plural noungalair oidhreachtúlahereditary diseases

séimhiú (the h) the ending

plural
galairdiseases
+
oidhreachtúlahereditary, plural
=
galair oidhreachtúlahereditary diseases

With a plural noun the adjective takes its plural form, oidhreachtúla.

More hereditary, most hereditary, very hereditary

níosmore
+
oidhreachtúlahereditary
=
níos oidhreachtúlamore hereditary
ismost
+
oidhreachtúlahereditary
=
is oidhreachtúlamost hereditary

Tá an galar seo níos oidhreachtúla ná an ceann eile. This disease is more hereditary than the other one.

more hereditaryníos oidhreachtúlain the past tense: ní b'oidhreachtúla
most hereditaryis oidhreachtúlain the past tense: ab oidhreachtúla
as hereditary aschomh hoidhreachtúil lechomh puts an h before a vowel
very hereditaryan-oidhreachtúilan- lenites, except d, t and s
too hereditaryró-oidhreachtúilró- lenites

“Oidhreachtúil” in a sentence: Irish examples

With a masculine noun, a feminine noun, a plural, a comparison and on its own.

Is galar oidhreachtúil é sin.
That is a hereditary disease.
Is tréith oidhreachtúil é an dath gruaige.
Hair colour is a hereditary trait.
Tá roinnt galair oidhreachtúla sa teaghlach.
There are some hereditary diseases in the family.
Tá an galar seo níos oidhreachtúla ná an ceann eile.
This disease is more hereditary than the other one.
Tá an riocht sin oidhreachtúil.
That condition is hereditary.

Other adjectives in Irish

More everyday Irish adjectives to learn next.

Hereditary in Irish: frequently asked questions

What is the Irish for hereditary?

The Irish for hereditary is oidhreachtúil (pronounced “IR-ukh-too-il”). It comes after the noun: galar oidhreachtúil, a hereditary disease; tréith oidhreachtúil, a hereditary trait.

How do you say more hereditary and most hereditary in Irish?

níos oidhreachtúla is more hereditary and is oidhreachtúla is most hereditary. In the past tense they become ní b'oidhreachtúla and ab oidhreachtúla.

What is the plural of oidhreachtúil?

With a plural noun oidhreachtúil becomes oidhreachtúla: galair oidhreachtúla, tréithe oidhreachtúla.

How do you say very hereditary in Irish?

an-oidhreachtúil. Too hereditary is ró-oidhreachtúil, and as hereditary as is chomh hoidhreachtúil le.

How is oidhreachtúil related to oidhreacht?

It comes from the noun oidhreacht, meaning inheritance or heritage, so oidhreachtúil describes something that is inherited.

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