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To fail in Irish (mainnigh): Meaning, Conjugation, Examples

Other uses of ‘mainnigh’: default

The Irish for to fail is mainnigh; ag mainneachtain is failing.
Updated October 2026Report a mistake

How to say “to fail” in Irish

Irish:
mainnigh
English:
to fail, default
Word type:
verb, second-conjugation
Verbal noun:
mainneachtain (ag mainneachtain, failing)
Verbal adjective:
mainnithe
Pronunciation:
“MAN-ee”  /ˈmanʲiː/

What does “mainnigh” mean?

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

to fail
To fail to do something you should do, or to fail someone, especially by not keeping an obligation.Also: fail to do, neglect, let down.
1 other meaning: default
2to default
To fail to pay a debt or to fulfil a legal or financial obligation.Also: fail to pay, default on.

Other Irish verbs for to fail: teip (fail), clis (fail), loic (fail)

“Mainnigh” in the different tenses

Every form follows An Caighdeán Oifigiúil.

Aimsir Chaite (Past)

PersonPositiveNegativeQuestion
mé (I)Mhainnigh méI failedNíor mhainnigh méI did not failAr mhainnigh mé?Did I fail?
tú (you)Mhainnigh túYou failedNíor mhainnigh túYou did not failAr mhainnigh tú?Did you fail?
sé / sí (he / she)Mhainnigh sé / síHe failedNíor mhainnigh sé / síHe did not failAr mhainnigh sé / sí?Did he fail?
sinn (we)MhainníomarWe failedNíor mhainníomarWe did not failAr mhainníomar?Did we fail?
sibh (you, plural)Mhainnigh sibhYou failedNíor mhainnigh sibhYou did not failAr mhainnigh sibh?Did you fail?
siad (they)Mhainnigh siadThey failedNíor mhainnigh siadThey did not failAr mhainnigh siad?Did they fail?
saorbhriathar (autonomous)MainníodhNíor mainníodhAr mainníodh?

Aimsir Láithreach (Present)

PersonPositiveNegativeQuestion
mé (I)MainnímI failNí mhainnímI do not failAn mainním?Do I fail?
tú (you)Mainníonn túYou failNí mhainníonn túYou do not failAn mainníonn tú?Do you fail?
sé / sí (he / she)Mainníonn sé / síHe failsNí mhainníonn sé / síHe does not failAn mainníonn sé / sí?Does he fail?
sinn (we)MainnímidWe failNí mhainnímidWe do not failAn mainnímid?Do we fail?
sibh (you, plural)Mainníonn sibhYou failNí mhainníonn sibhYou do not failAn mainníonn sibh?Do you fail?
siad (they)Mainníonn siadThey failNí mhainníonn siadThey do not failAn mainníonn siad?Do they fail?
saorbhriathar (autonomous)MainnítearNí mhainnítearAn mainnítear?

Aimsir Fháistineach (Future)

PersonPositiveNegativeQuestion
mé (I)Mainneoidh méI will failNí mhainneoidh méI will not failAn mainneoidh mé?Will I fail?
tú (you)Mainneoidh túYou will failNí mhainneoidh túYou will not failAn mainneoidh tú?Will you fail?
sé / sí (he / she)Mainneoidh sé / síHe will failNí mhainneoidh sé / síHe will not failAn mainneoidh sé / sí?Will he fail?
sinn (we)MainneoimidWe will failNí mhainneoimidWe will not failAn mainneoimid?Will we fail?
sibh (you, plural)Mainneoidh sibhYou will failNí mhainneoidh sibhYou will not failAn mainneoidh sibh?Will you fail?
siad (they)Mainneoidh siadThey will failNí mhainneoidh siadThey will not failAn mainneoidh siad?Will they fail?
saorbhriathar (autonomous)MainneofarNí mhainneofarAn mainneofar?

Modh Coinníollach (Conditional)

PersonPositiveNegativeQuestion
mé (I)MhainneoinnI would failNí mhainneoinnI would not failAn mainneoinn?Would I fail?
tú (you)MhainneofáYou would failNí mhainneofáYou would not failAn mainneofá?Would you fail?
sé / sí (he / she)Mhainneodh sé / síHe would failNí mhainneodh sé / síHe would not failAn mainneodh sé / sí?Would he fail?
sinn (we)MhainneoimisWe would failNí mhainneoimisWe would not failAn mainneoimis?Would we fail?
sibh (you, plural)Mhainneodh sibhYou would failNí mhainneodh sibhYou would not failAn mainneodh sibh?Would you fail?
siad (they)MhainneoidísThey would failNí mhainneoidísThey would not failAn mainneoidís?Would they fail?
saorbhriathar (autonomous)MhainneofaíNí mhainneofaíAn mainneofaí?

“Mainnigh” in a sentence: Irish examples

Past, present, future and conditional, with a negative and a question.

Mhainnigh sé ar an iasacht a aisíoc.
He defaulted on repaying the loan.
Mainníonn siad i gcónaí ar a ngealltanais.
They always fail to keep their promises.
Ní mhainneoidh mé ort, geallaim duit.
I won't fail you, I promise.
Dá mainneodh an comhlacht, chaillfí na poist.
If the company defaulted, the jobs would be lost.
Níor mhainnigh sí riamh ar a dualgas.
She never failed in her duty.
Ar mhainnigh siad ar an íocaíocht?
Did they default on the payment?

Other verbs in Irish

More everyday Irish verbs to learn next.

To fail in Irish: frequently asked questions

What is the Irish for to fail?

The Irish for to fail is mainnigh (pronounced “MAN-ee”). It is a second-conjugation verb; the verbal noun is mainneachtain.

What is the verbal noun of mainnigh?

The verbal noun of mainnigh is mainneachtain, used after ag for the continuous: ag mainneachtain (failing). The verbal adjective is mainnithe.

How do you say mainnigh in the past and the future?

Past: Mhainnigh mé; negative Níor mhainnigh mé; question Ar mhainnigh mé?. Future: Mainneoidh mé; negative Ní mhainneoidh mé; question An mainneoidh mé?.

What is the modh coinníollach of mainnigh?

The conditional (modh coinníollach) first person is Mhainneoinn (I would fail); negative Ní mhainneoinn; question An mainneoinn?.

Does mainnigh have more than one meaning?

Yes. Mainnigh can mean to fail or to default, depending on context; the first is the most common.

What is the difference between 'mainnigh' and 'teip'?

'Teip' is the everyday word for fail, as in 'theip orm'. 'Mainnigh' is more formal and is used for failing an obligation or defaulting, as in 'mhainnigh sé ar an iasacht'.

Which preposition does 'mainnigh' take?

It usually takes 'ar': 'mainnigh ar íocaíocht' means to default on a payment.

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