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Four-sided in Irish (ceathairshleasach): Meaning, Forms, Examples

The Irish for four-sided is ceathairshleasach: cruth ceathairshleasach, a four-sided shape.
Updated October 2026Report a mistake

How to say “four-sided” in Irish

Irish:
ceathairshleasach
English:
four-sided
Word type:
adjective
More four-sided:
níos ceathairshleasaí
Most four-sided:
is ceathairshleasaí
Plural:
ceathairshleasacha
Pronunciation:
“KA-har-hlas-ukh”  /ˈkahəɾˌhl̪ˠasˠəx/

What does “ceathairshleasach” mean?

four-sided
Having four sides, like a square or rectangle.Also: quadrilateral, quadrangular.

“Ceathairshleasach” after a noun

An Irish adjective comes after its noun. Here is ceathairshleasach after cruth (shape, masculine), after páirc (field, feminine) and after a plural.

after a masculine nouncruth ceathairshleasacha four-sided shape
after a feminine nounpáirc cheathairshleasacha four-sided field
after a plural nouncruthanna ceathairshleasachafour-sided shapes

séimhiú (the h) the ending

feminine
páircfield
+
ceathairshleasachfour-sided
=
páirc cheathairshleasacha four-sided field

After a feminine noun the adjective gets a séimhiú, an h after its first letter: páirc cheathairshleasach. After a masculine noun it stays as it is: cruth ceathairshleasach.

plural
cruthannashapes
+
ceathairshleasachafour-sided, plural
=
cruthanna ceathairshleasachafour-sided shapes

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

More four-sided, most four-sided, very four-sided

níosmore
+
ceathairshleasaífour-sided
=
níos ceathairshleasaímore four-sided
ismost
+
ceathairshleasaífour-sided
=
is ceathairshleasaímost four-sided

Níl cruth ar bith níos ceathairshleasaí ná cearnóg. No shape is more four-sided than a square.

more four-sidedníos ceathairshleasaíin the past tense: ní ba cheathairshleasaí
most four-sidedis ceathairshleasaíin the past tense: ba cheathairshleasaí
as four-sided aschomh ceathairshleasach leno change after chomh
very four-sidedan-cheathairshleasachan- lenites, except d, t and s
too four-sidedrócheathairshleasachró- lenites

“Ceathairshleasach” in a sentence: Irish examples

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

Tharraing sé cruth ceathairshleasach ar an gclár.
He drew a four-sided shape on the board.
Tá páirc cheathairshleasach taobh thiar den teach.
There is a four-sided field behind the house.
Is cruthanna ceathairshleasacha iad cearnóga agus dronuilleoga.
Squares and rectangles are four-sided shapes.
Níl cruth ar bith níos ceathairshleasaí ná cearnóg.
No shape is more four-sided than a square.
Tá an figiúr seo ceathairshleasach.
This figure is four-sided.

Other adjectives in Irish

More everyday Irish adjectives to learn next.

Four-sided in Irish: frequently asked questions

What is the Irish for four-sided?

The Irish for four-sided is ceathairshleasach (pronounced “KA-har-hlas-ukh”). It comes after the noun: cruth ceathairshleasach, a four-sided shape; páirc cheathairshleasach, a four-sided field.

How do you say more four-sided and most four-sided in Irish?

níos ceathairshleasaí is more four-sided and is ceathairshleasaí is most four-sided. In the past tense they become ní ba cheathairshleasaí and ba cheathairshleasaí.

Why does ceathairshleasach become cheathairshleasach?

After a feminine singular noun an adjective is lenited: it gets an h after its first letter. So páirc cheathairshleasach (a four-sided field) but cruth ceathairshleasach (a four-sided shape), because cruth is masculine.

What is the plural of ceathairshleasach?

With a plural noun ceathairshleasach becomes ceathairshleasacha: cruthanna ceathairshleasacha, páirceanna ceathairshleasacha.

How do you say very four-sided in Irish?

an-cheathairshleasach. Too four-sided is rócheathairshleasach, and as four-sided as is chomh ceathairshleasach le.

What is the noun for a four-sided figure?

The noun is "ceathairshleasán", a quadrilateral, while "ceathairshleasach" is the adjective meaning four-sided.

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