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Fossil in Irish (iontaiseach): Meaning, Forms, Examples

The Irish for fossil is iontaiseach: breosla iontaiseach, a fossil fuel.
Updated October 2026Report a mistake

How to say “fossil” in Irish

Irish:
iontaiseach
English:
fossil
Word type:
adjective
More fossil:
níos iontaisí
Most fossil:
is iontaisí
Plural:
iontaiseacha
Pronunciation:
“UN-tish-uck”  /ˈiːn̪ˠt̪ˠəʃəx/

What does “iontaiseach” mean?

fossil
Relating to fossils, or formed from the remains of ancient plants or animals preserved in rock.Also: fossilised, fossiliferous, fossilized.

“Iontaiseach” after a noun

An Irish adjective comes after its noun. Here is iontaiseach after breosla (fuel, masculine), after bean (woman, feminine) and after a plural.

after a masculine nounbreosla iontaiseacha fossil fuel
after a feminine nounbean iontaiseacha fossil woman
after a plural nounbreoslaí iontaiseachafossil fuels

séimhiú (the h) the ending

plural
breoslaífuels
+
iontaiseachafossil, plural
=
breoslaí iontaiseachafossil fuels

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

More fossil, most fossil, very fossil

níosmore
+
iontaisífossil
=
níos iontaisímore fossil
ismost
+
iontaisífossil
=
is iontaisímost fossil

Tá an charraig seo níos iontaisí ná an ceann eile. This rock is more fossil-rich than the other one.

more fossilníos iontaisíin the past tense: ní b'iontaisí
most fossilis iontaisíin the past tense: ab iontaisí
as fossil aschomh hiontaiseach lechomh puts an h before a vowel
very fossilan-iontaiseachan- lenites, except d, t and s
too fossilró-iontaiseachró- lenites

“Iontaiseach” in a sentence: Irish examples

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

Dónn an tír a lán breosla iontaisigh.
The country burns a lot of fossil fuel.
Fuair sé cloch iontaiseach ar an trá.
He found a fossil stone on the beach.
Tá breoslaí iontaiseacha ag dul i léig.
Fossil fuels are declining.
Tá an charraig seo níos iontaisí ná an ceann eile.
This rock is more fossil-rich than the other one.
Tá an t-adhmad seo iontaiseach.
This wood is fossilised.

Other adjectives in Irish

More everyday Irish adjectives to learn next.

Fossil in Irish: frequently asked questions

What is the Irish for fossil?

The Irish for fossil is iontaiseach (pronounced “UN-tish-uck”). It comes after the noun: breosla iontaiseach, a fossil fuel; bean iontaiseach, a fossil woman.

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

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

What is the plural of iontaiseach?

With a plural noun iontaiseach becomes iontaiseacha: breoslaí iontaiseacha, mná iontaiseacha.

How do you say very fossil in Irish?

an-iontaiseach. Too fossil is ró-iontaiseach, and as fossil as is chomh hiontaiseach le.

How do you say 'fossil fuel' in Irish?

The usual term is 'breosla iontaise', using the genitive of the noun 'iontaise', though 'breosla iontaiseach' is also found.

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