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Complexity in Irish (Ilchastacht): Meaning, Pronunciation, Usage

The Irish for complexity is ilchastacht, a feminine noun.
Updated October 2026Report a mistake

How to say “complexity” in Irish

Irish:
ilchastacht
English:
complexity
Word type:
noun
Gender:
feminine
Pronunciation:
“IL-khas-tukht”  /ˈɪlʲˌxast̪ˠəxt̪ˠ/
Various forms
Genitive singular:
ilchastachta, na hilchastachta (e.g. leibhéal na hilchastachta, level of complexity)

What does “ilchastacht” mean?

complexity
The state of being made up of many interconnected parts, so that something is complicated or intricate.Also: intricacy, complicatedness, complication.

Other Irish words for complexity: castacht (complexity)

“Ilchastacht” with the article

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

an ilchastacht
the complexity
No change: feminine nouns starting with a vowel keep their form after an

“Ilchastacht” in a sentence: Irish examples

Common Irish sentences using ilchastacht, the Irish word for complexity.

Ní thuigim ilchastacht na faidhbe seo.
I don't understand the complexity of this problem.
Cuireann an ilchastacht iontas ar na mic léinn.
The complexity surprises the students.
Tá ilchastacht mhór ag baint leis an gcóras.
There is great complexity involved in the system.
Méadaíonn leibhéal na hilchastachta gach bliain.
The level of complexity increases every year.
Is í an ilchastacht an deacracht is mó.
The complexity is the biggest difficulty.
Tá an teanga sin cáiliúil as a hilchastacht.
That language is famous for its complexity.
Labhair sí faoi ilchastacht an dlí.
She spoke about the complexity of the law.

Other nouns in Irish

More everyday Irish nouns to learn next.

Complexity in Irish: frequently asked questions

What is the Irish for complexity?

The Irish for complexity is ilchastacht (pronounced “IL-khas-tukht”). It’s a feminine noun.

How do you pronounce ilchastacht in Irish?

Ilchastacht is said like “IL-khas-tukht” (IPA /ˈɪlʲˌxast̪ˠəxt̪ˠ/).

Does ilchastacht have a plural?

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

Why does ilchastacht sometimes have a t or h in front of it?

Irish nouns beginning with a vowel take a prefix after certain words: an ilchastacht (the complexity), a hilchastacht (her complexity), a n-ilchastacht (their complexity).

What is the difference between ilchastacht and castacht?

Castacht is the ordinary word for complexity or complication; ilchastacht, with the prefix il- (many), stresses complexity arising from many parts and is more technical or formal.

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