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Interesting in Irish (suimiúil): Meaning, Forms, Examples

The Irish for interesting is suimiúil: leabhar suimiúil, an interesting book.
Updated October 2026Report a mistake

How to say “interesting” in Irish

Irish:
suimiúil
English:
interesting
Word type:
adjective
More interesting:
níos suimiúla
Most interesting:
is suimiúla
Plural:
suimiúla
Pronunciation:
“SIM-ool”  /ˈsˠɪmʲuːlʲ/

What does “suimiúil” mean?

interesting
Holding your attention or making you want to know more.Also: engaging, absorbing, fascinating.

Other Irish adjectives for interesting: spéisiúil (interesting)

“Suimiúil” after a noun

An Irish adjective comes after its noun. Here is suimiúil after leabhar (book, masculine), after tuairim (opinion, feminine) and after a plural.

after a masculine nounleabhar suimiúilan interesting book
after a feminine nountuairim shuimiúilan interesting opinion
after a plural nounleabhair shuimiúlainteresting books

séimhiú (the h) the ending

feminine
tuairimopinion
+
suimiúilinteresting
=
tuairim shuimiúilan interesting opinion

After a feminine noun the adjective gets a séimhiú, an h after its first letter: tuairim shuimiúil. After a masculine noun it stays as it is: leabhar suimiúil.

plural
leabhairbooks
+
suimiúlainteresting, plural
=
leabhair shuimiúlainteresting books

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

More interesting, most interesting, very interesting

níosmore
+
suimiúlainteresting
=
níos suimiúlamore interesting
ismost
+
suimiúlainteresting
=
is suimiúlamost interesting

Tá an clár seo níos suimiúla ná an ceann eile. This programme is more interesting than the other one.

more interestingníos suimiúlain the past tense: ní ba shuimiúla
most interestingis suimiúlain the past tense: ba shuimiúla
as interesting aschomh suimiúil leno change after chomh
very interestingan-suimiúilan- lenites, except d, t and s
too interestingróshuimiúilró- lenites

“Suimiúil” in a sentence: Irish examples

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

Léigh mé leabhar suimiúil inné.
I read an interesting book yesterday.
Thug an t-ollamh léacht shuimiúil.
The professor gave an interesting lecture.
Chonaic mé scannáin shuimiúla ag an bhféile.
I saw interesting films at the festival.
Tá an clár seo níos suimiúla ná an ceann eile.
This programme is more interesting than the other one.
Tá an scéal sin an-suimiúil.
That story is very interesting.

Other adjectives in Irish

More everyday Irish adjectives to learn next.

Interesting in Irish: frequently asked questions

What is the Irish for interesting?

The Irish for interesting is suimiúil (pronounced “SIM-ool”). It comes after the noun: leabhar suimiúil, an interesting book; tuairim shuimiúil, an interesting opinion.

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

níos suimiúla is more interesting and is suimiúla is most interesting. In the past tense they become ní ba shuimiúla and ba shuimiúla.

Why does suimiúil become shuimiúil?

After a feminine singular noun an adjective is lenited: it gets an h after its first letter. So tuairim shuimiúil (an interesting opinion) but leabhar suimiúil (an interesting book), because leabhar is masculine.

What is the plural of suimiúil?

With a plural noun suimiúil becomes suimiúla: leabhair shuimiúla, tuairimí suimiúla. After a plural that ends in a slender consonant it is lenited as well.

How do you say very interesting in Irish?

an-suimiúil. Too interesting is róshuimiúil, and as interesting as is chomh suimiúil le.

How do I say I am interested in something?

Use the noun suim: Tá suim agam sa stair means I am interested in history; suimiúil describes the thing itself, as in Tá an stair suimiúil.

What is the difference between suimiúil and spéisiúil?

Both mean interesting; suimiúil is the more common everyday word, while spéisiúil is also used, especially in Munster.

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