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Fanatical in Irish (fanaiceach): Meaning, Forms, Examples

Other uses of ‘fanaiceach’: zealot (noun, masculine)

The Irish for fanatical is fanaiceach: fear fanaiceach, a fanatical man.
Updated October 2026Report a mistake

How to say “fanatical” in Irish

Irish:
fanaiceach
English:
fanatical
Word type:
adjective
More fanatical:
níos fanaicí
Most fanatical:
is fanaicí
Plural:
fanaiceacha
Pronunciation:
“FAN-ik-yukh”  /ˈfanəcəx/

What does “fanaiceach” mean?

fanatical
Having extreme, unreasoning enthusiasm or zeal for a cause, belief or interest.Also: fanatic, zealous, extreme, bigoted.
Other entries for “fanaiceach”

The same spelling has its own page as:

“Fanaiceach” after a noun

An Irish adjective comes after its noun. Here is fanaiceach after fear (man, masculine), after eagraíocht (organization, feminine) and after a plural.

after a masculine nounfear fanaiceacha fanatical man
after a feminine nouneagraíocht fhanaiceacha fanatical organization
after a plural nounfir fhanaiceachafanatical men

séimhiú (the h) the ending

feminine
eagraíochtorganization
+
fanaiceachfanatical
=
eagraíocht fhanaiceacha fanatical organization

After a feminine noun the adjective gets a séimhiú, an h after its first letter: eagraíocht fhanaiceach. After a masculine noun it stays as it is: fear fanaiceach.

plural
firmen
+
fanaiceachafanatical, plural
=
fir fhanaiceachafanatical men

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

More fanatical, most fanatical, very fanatical

níosmore
+
fanaicífanatical
=
níos fanaicímore fanatical
ismost
+
fanaicífanatical
=
is fanaicímost fanatical

Tá sé níos fanaicí ná a dheartháir faoin bpeil. He is more fanatical than his brother about football.

more fanaticalníos fanaicíin the past tense: ní b'fhanaicí
most fanaticalis fanaicíin the past tense: ab fhanaicí
as fanatical aschomh fanaiceach leno change after chomh
very fanaticalan-fhanaiceachan- lenites, except d, t and s
too fanaticalrófhanaiceachró- lenites

“Fanaiceach” in a sentence: Irish examples

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

Is leantóir fanaiceach é ag an gcluiche.
He is a fanatical supporter at the match.
Bhí eagraíocht fhanaiceach taobh thiar den ionsaí.
A fanatical organisation was behind the attack.
Bhí daoine fanaiceacha ag béicíl ar an tsráid.
Fanatical people were shouting in the street.
Tá sé níos fanaicí ná a dheartháir faoin bpeil.
He is more fanatical than his brother about football.
Tá sé fanaiceach faoi chúrsaí creidimh.
He is fanatical about religious matters.

Other adjectives in Irish

More everyday Irish adjectives to learn next.

Fanatical in Irish: frequently asked questions

What is the Irish for fanatical?

The Irish for fanatical is fanaiceach (pronounced “FAN-ik-yukh”). It comes after the noun: fear fanaiceach, a fanatical man; eagraíocht fhanaiceach, a fanatical organization.

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

níos fanaicí is more fanatical and is fanaicí is most fanatical. In the past tense they become ní b'fhanaicí and ab fhanaicí.

Why does fanaiceach become fhanaiceach?

After a feminine singular noun an adjective is lenited: it gets an h after its first letter. So eagraíocht fhanaiceach (a fanatical organization) but fear fanaiceach (a fanatical man), because fear is masculine.

What is the plural of fanaiceach?

With a plural noun fanaiceach becomes fanaiceacha: fir fhanaiceacha, eagraíochtaí fanaiceacha. After a plural that ends in a slender consonant it is lenited as well.

How do you say very fanatical in Irish?

an-fhanaiceach. Too fanatical is rófhanaiceach, and as fanatical as is chomh fanaiceach le.

What is the difference between 'fanaiceach' and 'díograiseach'?

'Fanaiceach' means fanatical and is usually negative, while 'díograiseach' means zealous or enthusiastic in a positive sense.

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