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Volcanic in Irish (bolcánach): Meaning, Forms, Examples

Other uses of ‘bolcánach’: fiery

The Irish for volcanic is bolcánach: sliabh bolcánach, a volcanic mountain.
Updated October 2026Report a mistake

How to say “volcanic” in Irish

Irish:
bolcánach
English:
volcanic, fiery
Word type:
adjective
More volcanic:
níos bolcánaí
Most volcanic:
is bolcánaí
Plural:
bolcánacha
Pronunciation:
“BUL-kaw-nukh”  /ˈbˠɔlˠkɑːnˠəx/

What does “bolcánach” mean?

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

volcanic
Relating to, produced by, or like a volcano.Also: of a volcano, igneous.
1 other meaning: fiery
2fiery
Explosive and hot-tempered, like a volcano about to erupt.Also: explosive, volatile, hot-tempered.

“Bolcánach” after a noun

An Irish adjective comes after its noun. Here is bolcánach after sliabh (mountain, masculine), after carraig (rock, feminine) and after a plural.

after a masculine nounsliabh bolcánacha volcanic mountain
after a feminine nouncarraig bholcánacha volcanic rock
after a plural nounsléibhte bolcánachavolcanic mountains

séimhiú (the h) the ending

feminine
carraigrock
+
bolcánachvolcanic
=
carraig bholcánacha volcanic rock

After a feminine noun the adjective gets a séimhiú, an h after its first letter: carraig bholcánach. After a masculine noun it stays as it is: sliabh bolcánach.

plural
sléibhtemountains
+
bolcánachavolcanic, plural
=
sléibhte bolcánachavolcanic mountains

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

More volcanic, most volcanic, very volcanic

níosmore
+
bolcánaívolcanic
=
níos bolcánaímore volcanic
ismost
+
bolcánaívolcanic
=
is bolcánaímost volcanic

Tá an t-oileán seo níos bolcánaí ná an ceann eile. This island is more volcanic than the other one.

more volcanicníos bolcánaíin the past tense: ní ba bholcánaí
most volcanicis bolcánaíin the past tense: ba bholcánaí
as volcanic aschomh bolcánach leno change after chomh
very volcanican-bholcánachan- lenites, except d, t and s
too volcanicróbholcánachró- lenites

“Bolcánach” in a sentence: Irish examples

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

Dhreapamar sliabh bolcánach san Iodáil.
We climbed a volcanic mountain in Italy.
Tá an charraig bholcánach seo an-dubh.
This volcanic rock is very black.
Tá a lán oileáin bholcánacha san Aigéan Ciúin.
There are many volcanic islands in the Pacific Ocean.
Tá an t-oileán seo níos bolcánaí ná an ceann eile.
This island is more volcanic than the other one.
Tá an talamh anseo bolcánach.
The land here is volcanic.

Other adjectives in Irish

More everyday Irish adjectives to learn next.

Volcanic in Irish: frequently asked questions

What is the Irish for volcanic?

The Irish for volcanic is bolcánach (pronounced “BUL-kaw-nukh”). It comes after the noun: sliabh bolcánach, a volcanic mountain; carraig bholcánach, a volcanic rock.

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

níos bolcánaí is more volcanic and is bolcánaí is most volcanic. In the past tense they become ní ba bholcánaí and ba bholcánaí.

Why does bolcánach become bholcánach?

After a feminine singular noun an adjective is lenited: it gets an h after its first letter. So carraig bholcánach (a volcanic rock) but sliabh bolcánach (a volcanic mountain), because sliabh is masculine.

What is the plural of bolcánach?

With a plural noun bolcánach becomes bolcánacha: sléibhte bolcánacha, carraigeacha bolcánacha.

How do you say very volcanic in Irish?

an-bholcánach. Too volcanic is róbholcánach, and as volcanic as is chomh bolcánach le.

Does bolcánach have more than one meaning?

Yes. Bolcánach can mean volcanic or fiery, depending on context; the first is the most common.

What is the Irish noun for a volcano?

The noun is 'bolcán' (masculine), and 'bolcánach' is the adjective formed from it, as in 'gníomhaíocht bholcánach' (volcanic activity).

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