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Disastrous in Irish (tubaisteach): Meaning, Forms, Examples

Other uses of ‘tubaisteach’: unlucky

The Irish for disastrous is tubaisteach: fear tubaisteach, a disastrous man.
Updated October 2026Report a mistake

How to say “disastrous” in Irish

Irish:
tubaisteach
English:
disastrous, unlucky
Word type:
adjective
More disastrous:
níos tubaistí
Most disastrous:
is tubaistí
Plural:
tubaisteacha
Pronunciation:
“TUB-ish-tyukh”  /ˈt̪ˠʊbˠəʃtʲəx/

What does “tubaisteach” mean?

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

disastrous
Causing or involving a disaster or great misfortune.Also: calamitous, catastrophic, ruinous.
1 other meaning: unlucky
2unlucky
Bringing bad luck or ill fortune.Also: ill-fated, unfortunate.

“Tubaisteach” after a noun

An Irish adjective comes after its noun. Here is tubaisteach after fear (man, masculine), after stoirm (storm, feminine) and after a plural.

after a masculine nounfear tubaisteacha disastrous man
after a feminine nounstoirm thubaisteacha disastrous storm
after a plural nounfir thubaisteachadisastrous men

séimhiú (the h) the ending

feminine
stoirmstorm
+
tubaisteachdisastrous
=
stoirm thubaisteacha disastrous storm

After a feminine noun the adjective gets a séimhiú, an h after its first letter: stoirm thubaisteach. After a masculine noun it stays as it is: fear tubaisteach.

plural
firmen
+
tubaisteachadisastrous, plural
=
fir thubaisteachadisastrous men

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

More disastrous, most disastrous, very disastrous

níosmore
+
tubaistídisastrous
=
níos tubaistímore disastrous
ismost
+
tubaistídisastrous
=
is tubaistímost disastrous

Bhí an bhliain seo níos tubaistí ná anuraidh. This year was more disastrous than last year.

more disastrousníos tubaistíin the past tense: ní ba thubaistí
most disastrousis tubaistíin the past tense: ba thubaistí
as disastrous aschomh tubaisteach leno change after chomh
very disastrousan-tubaisteachan- lenites, except d, t and s
too disastrousróthubaisteachró- lenites

“Tubaisteach” in a sentence: Irish examples

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

Bhí botún tubaisteach sa phlean.
There was a disastrous mistake in the plan.
Rinne an stoirm thubaisteach damáiste mór.
The disastrous storm did great damage.
Bhí torthaí tubaisteacha ag an gcinneadh sin.
That decision had disastrous results.
Bhí an bhliain seo níos tubaistí ná anuraidh.
This year was more disastrous than last year.
Bhí an cluiche tubaisteach dúinn.
The match was disastrous for us.

Other adjectives in Irish

More everyday Irish adjectives to learn next.

Disastrous in Irish: frequently asked questions

What is the Irish for disastrous?

The Irish for disastrous is tubaisteach (pronounced “TUB-ish-tyukh”). It comes after the noun: fear tubaisteach, a disastrous man; stoirm thubaisteach, a disastrous storm.

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

níos tubaistí is more disastrous and is tubaistí is most disastrous. In the past tense they become ní ba thubaistí and ba thubaistí.

Why does tubaisteach become thubaisteach?

After a feminine singular noun an adjective is lenited: it gets an h after its first letter. So stoirm thubaisteach (a disastrous storm) but fear tubaisteach (a disastrous man), because fear is masculine.

What is the plural of tubaisteach?

With a plural noun tubaisteach becomes tubaisteacha: fir thubaisteacha, stoirmeacha tubaisteacha. After a plural that ends in a slender consonant it is lenited as well.

How do you say very disastrous in Irish?

an-tubaisteach. Too disastrous is róthubaisteach, and as disastrous as is chomh tubaisteach le.

Does tubaisteach have more than one meaning?

Yes. Tubaisteach can mean disastrous or unlucky, depending on context; the first is the most common.

What noun is 'tubaisteach' related to?

It comes from 'tubaiste', meaning a disaster or calamity, as in 'tubaiste nádúrtha', a natural disaster.

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