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Isosceles in Irish (comhchosach): Meaning, Forms, Examples

The Irish for isosceles is comhchosach: triantán comhchosach, an isosceles triangle.
Updated October 2026Report a mistake

How to say “isosceles” in Irish

Irish:
comhchosach
English:
isosceles
Word type:
adjective
More isosceles:
níos comhchosaí
Most isosceles:
is comhchosaí
Plural:
comhchosacha
Pronunciation:
“KOH-khus-ukh”  /ˈkoːxʊsˠəx/

What does “comhchosach” mean?

isosceles
Describes a triangle that has two sides of equal length.Also: equal-legged, two equal sides.

“Comhchosach” after a noun

An Irish adjective comes after its noun. Here is comhchosach after triantán (triangle, masculine), after bean (woman, feminine) and after a plural.

after a masculine nountriantán comhchosachan isosceles triangle
after a feminine nounbean chomhchosachan isosceles woman
after a plural nountriantáin chomhchosachaisosceles triangles

séimhiú (the h) the ending

feminine
beanwoman
+
comhchosachisosceles
=
bean chomhchosachan isosceles woman

After a feminine noun the adjective gets a séimhiú, an h after its first letter: bean chomhchosach. After a masculine noun it stays as it is: triantán comhchosach.

plural
triantáintriangles
+
comhchosachaisosceles, plural
=
triantáin chomhchosachaisosceles triangles

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

More isosceles, most isosceles, very isosceles

níosmore
+
comhchosaíisosceles
=
níos comhchosaímore isosceles
ismost
+
comhchosaíisosceles
=
is comhchosaímost isosceles

Níl triantán ar bith níos comhchosaí ná a chéile. No triangle is more isosceles than another.

more isoscelesníos comhchosaíin the past tense: ní ba chomhchosaí
most isoscelesis comhchosaíin the past tense: ba chomhchosaí
as isosceles aschomh comhchosach leno change after chomh
very isoscelesan-chomhchosachan- lenites, except d, t and s
too isoscelesróchomhchosachró- lenites

“Comhchosach” in a sentence: Irish examples

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

Tharraing sí triantán comhchosach sa chóipleabhar.
She drew an isosceles triangle in the copybook.
Is figiúr comhchosach é an ceann seo.
This one is an isosceles figure.
Tá trí thriantán comhchosacha ar an gclár bán.
There are three isosceles triangles on the whiteboard.
Níl triantán ar bith níos comhchosaí ná a chéile.
No triangle is more isosceles than another.
Tá an triantán seo comhchosach.
This triangle is isosceles.

Other adjectives in Irish

More everyday Irish adjectives to learn next.

Isosceles in Irish: frequently asked questions

What is the Irish for isosceles?

The Irish for isosceles is comhchosach (pronounced “KOH-khus-ukh”). It comes after the noun: triantán comhchosach, an isosceles triangle; bean chomhchosach, an isosceles woman.

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

níos comhchosaí is more isosceles and is comhchosaí is most isosceles. In the past tense they become ní ba chomhchosaí and ba chomhchosaí.

Why does comhchosach become chomhchosach?

After a feminine singular noun an adjective is lenited: it gets an h after its first letter. So bean chomhchosach (an isosceles woman) but triantán comhchosach (an isosceles triangle), because triantán is masculine.

What is the plural of comhchosach?

With a plural noun comhchosach becomes comhchosacha: triantáin chomhchosacha, mná comhchosacha. After a plural that ends in a slender consonant it is lenited as well.

How do you say very isosceles in Irish?

an-chomhchosach. Too isosceles is róchomhchosach, and as isosceles as is chomh comhchosach le.

What is the difference between comhchosach and comhshleasach?

A triantán comhchosach has two equal sides (isosceles), while a triantán comhshleasach has all three sides equal (equilateral).

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