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Faulty in Irish (fabhtach): Meaning, Forms, Examples

Other uses of ‘fabhtach’: treacherous

The Irish for faulty is fabhtach: inneall fabhtach, a faulty machine.
Updated October 2026Report a mistake

How to say “faulty” in Irish

Irish:
fabhtach
English:
faulty, treacherous
Word type:
adjective
Faultier:
níos fabhtaí
Faultiest:
is fabhtaí
Plural:
fabhtacha
Pronunciation:
“FOW-tukh”  /ˈfˠaut̪ˠəx/

What does “fabhtach” mean?

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

faulty
Having a fault or defect, so that it does not work properly.Also: defective, flawed, unsound.
1 other meaning: treacherous
2treacherous
Not to be trusted; deceptive or likely to let you down.Also: deceptive, unreliable, untrustworthy.

Other Irish adjectives for faulty: lochtach (faulty)

“Fabhtach” after a noun

An Irish adjective comes after its noun. Here is fabhtach after inneall (machine, masculine), after scian (knife, feminine) and after a plural.

after a masculine nouninneall fabhtacha faulty machine
after a feminine nounscian fhabhtacha faulty knife
after a plural nouninnill fhabhtachafaulty machines

séimhiú (the h) the ending

feminine
scianknife
+
fabhtachfaulty
=
scian fhabhtacha faulty knife

After a feminine noun the adjective gets a séimhiú, an h after its first letter: scian fhabhtach. After a masculine noun it stays as it is: inneall fabhtach.

plural
innillmachines
+
fabhtachafaulty, plural
=
innill fhabhtachafaulty machines

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

Faultier, faultiest, very faulty

níosmore
+
fabhtaífaulty
=
níos fabhtaífaultier
ismost
+
fabhtaífaulty
=
is fabhtaífaultiest

Tá an ríomhaire seo níos fabhtaí ná an ceann eile. This computer is more faulty than the other one.

faultierníos fabhtaíin the past tense: ní b'fhabhtaí
faultiestis fabhtaíin the past tense: ab fhabhtaí
as faulty aschomh fabhtach leno change after chomh
very faultyan-fhabhtachan- lenites, except d, t and s
too faultyrófhabhtachró- lenites

“Fabhtach” in a sentence: Irish examples

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

Cheannaigh sé inneall fabhtach ar an margadh.
He bought a faulty engine at the market.
Ba chúis leis an tine sreang fhabhtach.
A faulty wire caused the fire.
Cuireadh na hearraí fabhtacha ar ais chuig an siopa.
The faulty goods were sent back to the shop.
Tá an ríomhaire seo níos fabhtaí ná an ceann eile.
This computer is more faulty than the other one.
Tá an argóint sin fabhtach.
That argument is flawed.

Other adjectives in Irish

More everyday Irish adjectives to learn next.

Faulty in Irish: frequently asked questions

What is the Irish for faulty?

The Irish for faulty is fabhtach (pronounced “FOW-tukh”). It comes after the noun: inneall fabhtach, a faulty machine; scian fhabhtach, a faulty knife.

How do you say faultier and faultiest in Irish?

níos fabhtaí is faultier and is fabhtaí is faultiest. In the past tense they become ní b'fhabhtaí and ab fhabhtaí.

Why does fabhtach become fhabhtach?

After a feminine singular noun an adjective is lenited: it gets an h after its first letter. So scian fhabhtach (a faulty knife) but inneall fabhtach (a faulty machine), because inneall is masculine.

What is the plural of fabhtach?

With a plural noun fabhtach becomes fabhtacha: innill fhabhtacha, sceana fabhtacha. After a plural that ends in a slender consonant it is lenited as well.

How do you say very faulty in Irish?

an-fhabhtach. Too faulty is rófhabhtach, and as faulty as is chomh fabhtach le.

Does fabhtach have more than one meaning?

Yes. Fabhtach can mean faulty or treacherous, depending on context; the first is the most common.

What is the difference between 'fabhtach' and 'lochtach'?

Both mean faulty, but 'fabhtach' is often used of a hidden flaw or defect in a thing, while 'lochtach' is more general and also means blameworthy, as in 'duine lochtach'.

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