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Crossness in Irish (Crostacht): Meaning, Pronunciation, Usage

‘crostacht’ also means: mischievousness · complicatedness

The Irish for crossness is crostacht, a feminine noun.
Updated October 2026Report a mistake

How to say “crossness” in Irish

Irish:
crostacht
English:
crossness, mischievousness, complicatedness
Word type:
noun
Gender:
feminine
Pronunciation:
“KROS-tukht”  /ˈkɾˠɔsˠt̪ˠəxt̪ˠ/
Various forms
Genitive singular:
crostachta, na crostachta (e.g. de bharr a chrostachta, because of his crossness)

What does “crostacht” mean?

“Crostacht” has three alternative meanings. The most common comes first.

crossness
The quality of being bad-tempered, irritable or contrary.Also: fractiousness, irritability, bad temper, contrariness.
2 other meanings: mischievousness or complicatedness
2mischievousness
Naughtiness or troublesome behaviour, especially in children.Also: naughtiness, troublesomeness, mischief.
3complicatedness
The quality of being difficult, awkward or complicated.Also: difficulty, awkwardness, intricacy.

“Crostacht” with the article

Here is crostacht after the article (an t-alt).

an chrostacht
the crossness
Lenition: c becomes ch after an (feminine noun)

“Crostacht” in a sentence: Irish examples

Common Irish sentences using crostacht, the Irish word for crossness.

Bhí crostacht ar an bpáiste ar maidin.
The child was cranky this morning.
Níl aon ghá leis an gcrostacht sin.
There's no need for that bad temper.
Tá mé tuirseach dá chrostacht.
I'm tired of his crossness.
Ní fhéadfainn cur suas le crostacht na ndaltaí.
I couldn't put up with the pupils' mischief.
Tháinig crostacht air nuair a bhí ocras air.
He got grumpy when he was hungry.
Gabh mo leithscéal as mo chrostacht inné.
Sorry for my bad temper yesterday.

Other nouns in Irish

More everyday Irish nouns to learn next.

Crossness in Irish: frequently asked questions

What is the Irish for crossness?

The Irish for crossness is crostacht (pronounced “KROS-tukht”). It’s a feminine noun. Depending on context it can also mean mischievousness or complicatedness.

How do you pronounce crostacht in Irish?

Crostacht is said like “KROS-tukht” (IPA /ˈkɾˠɔsˠt̪ˠəxt̪ˠ/).

Does crostacht have a plural?

No plural form is given for crostacht in the standard. Many abstract and mass nouns in Irish have no plural.

Does crostacht have more than one meaning?

Yes. Crostacht can mean crossness, mischievousness or complicatedness, depending on context; the first is the most common.

Why does crostacht change to chrostacht or gcrostacht?

Irish changes the start of some words after certain words. After mo (my) crostacht becomes mo chrostacht (lenition), and after ár (our) or i (in) it becomes ár gcrostacht (eclipsis).

What adjective is crostacht formed from?

It comes from the adjective crosta, meaning cross, contrary or naughty, as in páiste crosta, a naughty child.

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