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Geothermal in Irish (geoiteirmeach): Meaning, Forms, Examples

The Irish for geothermal is geoiteirmeach: córas geoiteirmeach, a geothermal system.
Updated October 2026Report a mistake

How to say “geothermal” in Irish

Irish:
geoiteirmeach
English:
geothermal
Word type:
adjective
More geothermal:
níos geoiteirmí
Most geothermal:
is geoiteirmí
Plural:
geoiteirmeacha
Pronunciation:
“gyo-TER-im-ukh”  /ɟoˈtʲɛɾʲəmʲəx/

What does “geoiteirmeach” mean?

geothermal
Relating to the heat inside the earth, or using that heat as a source of energy.Also: earth heat, ground source.

“Geoiteirmeach” after a noun

An Irish adjective comes after its noun. Here is geoiteirmeach after córas (system, masculine), after scéim (scheme, feminine) and after a plural.

after a masculine nouncóras geoiteirmeacha geothermal system
after a feminine nounscéim gheoiteirmeacha geothermal scheme
after a plural nouncórais gheoiteirmeachageothermal systems

séimhiú (the h) the ending

feminine
scéimscheme
+
geoiteirmeachgeothermal
=
scéim gheoiteirmeacha geothermal scheme

After a feminine noun the adjective gets a séimhiú, an h after its first letter: scéim gheoiteirmeach. After a masculine noun it stays as it is: córas geoiteirmeach.

plural
córaissystems
+
geoiteirmeachageothermal, plural
=
córais gheoiteirmeachageothermal systems

With a plural noun the adjective takes its plural form, geoiteirmeacha. It also gets an h after a plural that ends in a slender consonant: córais gheoiteirmeacha; after other plurals it does not: scéimeanna geoiteirmeacha.

More geothermal, most geothermal, very geothermal

níosmore
+
geoiteirmígeothermal
=
níos geoiteirmímore geothermal
ismost
+
geoiteirmígeothermal
=
is geoiteirmímost geothermal

Tá an réigiún seo níos geoiteirmí ná an ceann eile. This region is more geothermal than the other one.

more geothermalníos geoiteirmíin the past tense: ní ba gheoiteirmí
most geothermalis geoiteirmíin the past tense: ba gheoiteirmí
as geothermal aschomh geoiteirmeach leno change after chomh
very geothermalan-gheoiteirmeachan- lenites, except d, t and s
too geothermalrógheoiteirmeachró- lenites

“Geoiteirmeach” in a sentence: Irish examples

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

Is foinse ghlan é fuinneamh geoiteirmeach.
Geothermal energy is a clean source.
Tá caidéal teasa agus córas téimh geoiteirmeach acu.
They have a heat pump and a geothermal heating system.
Tá go leor toibreacha geoiteirmeacha san Íoslainn.
There are many geothermal wells in Iceland.
Tá an réigiún seo níos geoiteirmí ná an ceann eile.
This region is more geothermal than the other one.
Tá an fuinneamh sa cheantar sin geoiteirmeach.
The energy in that area is geothermal.

Other adjectives in Irish

More everyday Irish adjectives to learn next.

Geothermal in Irish: frequently asked questions

What is the Irish for geothermal?

The Irish for geothermal is geoiteirmeach (pronounced “gyo-TER-im-ukh”). It comes after the noun: córas geoiteirmeach, a geothermal system; scéim gheoiteirmeach, a geothermal scheme.

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

níos geoiteirmí is more geothermal and is geoiteirmí is most geothermal. In the past tense they become ní ba gheoiteirmí and ba gheoiteirmí.

Why does geoiteirmeach become gheoiteirmeach?

After a feminine singular noun an adjective is lenited: it gets an h after its first letter. So scéim gheoiteirmeach (a geothermal scheme) but córas geoiteirmeach (a geothermal system), because córas is masculine.

What is the plural of geoiteirmeach?

With a plural noun geoiteirmeach becomes geoiteirmeacha: córais gheoiteirmeacha, scéimeanna geoiteirmeacha. After a plural that ends in a slender consonant it is lenited as well.

How do you say very geothermal in Irish?

an-gheoiteirmeach. Too geothermal is rógheoiteirmeach, and as geothermal as is chomh geoiteirmeach le.

How do you say geothermal energy in Irish?

It is 'fuinneamh geoiteirmeach'; the related word for thermal on its own is 'teirmeach'.

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