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Strong in Irish (treisiúil): Meaning, Forms, Examples

Other uses of ‘treisiúil’: intense

The Irish for strong is treisiúil: fear treisiúil, a strong man.
Updated October 2026Report a mistake

How to say “strong” in Irish

Irish:
treisiúil
English:
strong, intense
Word type:
adjective
Stronger:
níos treisiúla
Strongest:
is treisiúla
Plural:
treisiúla
Pronunciation:
“TRESH-oo-il”  /ˈtʲɾʲɛʃuːlʲ/

What does “treisiúil” mean?

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

strong
Having great strength, power or force.Also: powerful, forceful, mighty, vigorous.
1 other meaning: intense
2intense
Strong in degree or effect, such as a feeling, light or influence.Also: strong, potent.

Other Irish adjectives for strong: láidir (strong), tréan (strong), urrúnta (strong), neartmhar (strong)

“Treisiúil” after a noun

An Irish adjective comes after its noun. Here is treisiúil after fear (man, masculine), after gaoth (wind, feminine) and after a plural.

after a masculine nounfear treisiúila strong man
after a feminine noungaoth threisiúila strong wind
after a plural nounfir threisiúlastrong men

séimhiú (the h) the ending

feminine
gaothwind
+
treisiúilstrong
=
gaoth threisiúila strong wind

After a feminine noun the adjective gets a séimhiú, an h after its first letter: gaoth threisiúil. After a masculine noun it stays as it is: fear treisiúil.

plural
firmen
+
treisiúlastrong, plural
=
fir threisiúlastrong men

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

Stronger, strongest, very strong

níosmore
+
treisiúlastrong
=
níos treisiúlastronger
ismost
+
treisiúlastrong
=
is treisiúlastrongest

Tá an t-inneall nua níos treisiúla ná an seancheann. The new engine is more powerful than the old one.

strongerníos treisiúlain the past tense: ní ba threisiúla
strongestis treisiúlain the past tense: ba threisiúla
as strong aschomh treisiúil leno change after chomh
very strongan-treisiúilan- lenites, except d, t and s
too strongróthreisiúilró- lenites

“Treisiúil” in a sentence: Irish examples

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

Is fear treisiúil é an feirmeoir sin.
That farmer is a strong man.
Bhí gaoth threisiúil ag séideadh ón bhfarraige.
A strong wind was blowing from the sea.
Tá capaill threisiúla acu ar an bhfeirm.
They have strong horses on the farm.
Tá an t-inneall nua níos treisiúla ná an seancheann.
The new engine is more powerful than the old one.
Tá an deoch seo an-treisiúil.
This drink is very strong.

Other adjectives in Irish

More everyday Irish adjectives to learn next.

Strong in Irish: frequently asked questions

What is the Irish for strong?

The Irish for strong is treisiúil (pronounced “TRESH-oo-il”). It comes after the noun: fear treisiúil, a strong man; gaoth threisiúil, a strong wind.

How do you say stronger and strongest in Irish?

níos treisiúla is stronger and is treisiúla is strongest. In the past tense they become ní ba threisiúla and ba threisiúla.

Why does treisiúil become threisiúil?

After a feminine singular noun an adjective is lenited: it gets an h after its first letter. So gaoth threisiúil (a strong wind) but fear treisiúil (a strong man), because fear is masculine.

What is the plural of treisiúil?

With a plural noun treisiúil becomes treisiúla: fir threisiúla, gaotha treisiúla. After a plural that ends in a slender consonant it is lenited as well.

How do you say very strong in Irish?

an-treisiúil. Too strong is róthreisiúil, and as strong as is chomh treisiúil le.

Does treisiúil have more than one meaning?

Yes. Treisiúil can mean strong or intense, depending on context; the first is the most common.

What is the difference between 'treisiúil' and 'láidir'?

'Láidir' is the everyday word for strong, while 'treisiúil' is more literary and stresses power or force, as in 'gaoth threisiúil' (a powerful wind).

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