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Expert in Irish (saineolach): Meaning, Forms, Examples

The Irish for expert is saineolach: fear saineolach, an expert man.
Updated October 2026Report a mistake

How to say “expert” in Irish

Irish:
saineolach
English:
expert
Word type:
adjective
More expert:
níos saineolaí
Most expert:
is saineolaí
Plural:
saineolacha
Pronunciation:
“SAN-yoh-lukh”  /ˈsanʲoːləx/

What does “saineolach” mean?

expert
Having special skill or detailed knowledge of a subject.Also: knowledgeable, specialist, skilled, well-informed.

“Saineolach” after a noun

An Irish adjective comes after its noun. Here is saineolach after fear (man, masculine), after comhairle (advice, feminine) and after a plural.

after a masculine nounfear saineolachan expert man
after a feminine nouncomhairle shaineolachexpert advice
after a plural nounfir shaineolachaexpert men

séimhiú (the h) the ending

feminine
comhairleadvice
+
saineolachexpert
=
comhairle shaineolachexpert advice

After a feminine noun the adjective gets a séimhiú, an h after its first letter: comhairle shaineolach. After a masculine noun it stays as it is: fear saineolach.

plural
firmen
+
saineolachaexpert, plural
=
fir shaineolachaexpert men

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

More expert, most expert, very expert

níosmore
+
saineolaíexpert
=
níos saineolaímore expert
ismost
+
saineolaíexpert
=
is saineolaímost expert

Tá sí níos saineolaí ná mise ar ríomhairí. She knows more about computers than I do.

more expertníos saineolaíin the past tense: ní ba shaineolaí
most expertis saineolaíin the past tense: ba shaineolaí
as expert aschomh saineolach leno change after chomh
very expertan-saineolachan- lenites, except d, t and s
too expertróshaineolachró- lenites

“Saineolach” in a sentence: Irish examples

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

Is fear saineolach é ar stair na hÉireann.
He is a man who is expert in Irish history.
Thug sí comhairle shaineolach dúinn.
She gave us expert advice.
Tá sí an-saineolach ar stair na hÉireann.
She is very expert in Irish history.
Tá sí níos saineolaí ná mise ar ríomhairí.
She knows more about computers than I do.
Tá sé an-saineolach ar cheol traidisiúnta.
He is very knowledgeable about traditional music.

Other adjectives in Irish

More everyday Irish adjectives to learn next.

Expert in Irish: frequently asked questions

What is the Irish for expert?

The Irish for expert is saineolach (pronounced “SAN-yoh-lukh”). It comes after the noun: fear saineolach, an expert man; comhairle shaineolach, expert advice.

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

níos saineolaí is more expert and is saineolaí is most expert. In the past tense they become ní ba shaineolaí and ba shaineolaí.

Why does saineolach become shaineolach?

After a feminine singular noun an adjective is lenited: it gets an h after its first letter. So comhairle shaineolach (expert advice) but fear saineolach (an expert man), because fear is masculine.

What is the plural of saineolach?

With a plural noun saineolach becomes saineolacha: fir shaineolacha, comhairlí saineolacha. After a plural that ends in a slender consonant it is lenited as well.

How do you say very expert in Irish?

an-saineolach. Too expert is róshaineolach, and as expert as is chomh saineolach le.

Which preposition goes with 'saineolach'?

Use 'ar': 'Tá sé saineolach ar dhlí' means he is expert in law.

How is 'saineolach' different from 'eolach'?

'Eolach' means knowledgeable or well-informed in general, while 'saineolach' implies specialist, expert knowledge. The noun 'saineolaí' means an expert.

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