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Capable in Irish (cumasach): Meaning, Forms, Examples

Other uses of ‘cumasach’: powerful

The Irish for capable is cumasach: múinteoir cumasach, a capable teacher.
Updated October 2026Report a mistake

How to say “capable” in Irish

Irish:
cumasach
English:
capable, powerful
Word type:
adjective
More capable:
níos cumasaí
Most capable:
is cumasaí
Plural:
cumasacha
Pronunciation:
“KUM-a-sukh”  /ˈkʊmˠəsˠəx/

What does “cumasach” mean?

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

capable
Having the ability or skill to do things well.Also: able, competent, skilled, talented.
1 other meaning: powerful
2powerful
Having great strength or power.Also: strong, mighty, potent.

Other Irish adjectives for capable: ábalta (able), inniúil (capable)

“Cumasach” after a noun

An Irish adjective comes after its noun. Here is cumasach after múinteoir (teacher, masculine), after bean (woman, feminine) and after a plural.

after a masculine nounmúinteoir cumasacha capable teacher
after a feminine nounbean chumasacha capable woman
after a plural nounmúinteoirí cumasachacapable teachers

séimhiú (the h) the ending

feminine
beanwoman
+
cumasachcapable
=
bean chumasacha capable woman

After a feminine noun the adjective gets a séimhiú, an h after its first letter: bean chumasach. After a masculine noun it stays as it is: múinteoir cumasach.

plural
múinteoiríteachers
+
cumasachacapable, plural
=
múinteoirí cumasachacapable teachers

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

More capable, most capable, very capable

níosmore
+
cumasaícapable
=
níos cumasaímore capable
ismost
+
cumasaícapable
=
is cumasaímost capable

Tá sí níos cumasaí ná a deartháir. She is more capable than her brother.

more capableníos cumasaíin the past tense: ní ba chumasaí
most capableis cumasaíin the past tense: ba chumasaí
as capable aschomh cumasach leno change after chomh
very capablean-chumasachan- lenites, except d, t and s
too capableróchumasachró- lenites

“Cumasach” in a sentence: Irish examples

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

Is múinteoir cumasach é Seán.
Seán is a capable teacher.
Is bean chumasach í an dochtúir nua.
The new doctor is a capable woman.
Tá imreoirí cumasacha ar an bhfoireann.
There are capable players on the team.
Tá sí níos cumasaí ná a deartháir.
She is more capable than her brother.
Tá an cailín sin an-chumasach.
That girl is very capable.

Other adjectives in Irish

More everyday Irish adjectives to learn next.

Capable in Irish: frequently asked questions

What is the Irish for capable?

The Irish for capable is cumasach (pronounced “KUM-a-sukh”). It comes after the noun: múinteoir cumasach, a capable teacher; bean chumasach, a capable woman.

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

níos cumasaí is more capable and is cumasaí is most capable. In the past tense they become ní ba chumasaí and ba chumasaí.

Why does cumasach become chumasach?

After a feminine singular noun an adjective is lenited: it gets an h after its first letter. So bean chumasach (a capable woman) but múinteoir cumasach (a capable teacher), because múinteoir is masculine.

What is the plural of cumasach?

With a plural noun cumasach becomes cumasacha: múinteoirí cumasacha, mná cumasacha.

How do you say very capable in Irish?

an-chumasach. Too capable is róchumasach, and as capable as is chomh cumasach le.

Does cumasach have more than one meaning?

Yes. Cumasach can mean capable or powerful, depending on context; the first is the most common.

What is the difference between cumasach and cumhachtach?

Cumasach usually means capable or able, describing skill, while cumhachtach means powerful in the sense of authority or force, as in rialtas cumhachtach.

What is the opposite of cumasach?

The opposite is éagumasach, meaning incapable or unable.

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