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Obtuse in Irish (maoluilleach): Meaning, Forms, Examples

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

How to say “obtuse” in Irish

Irish:
maoluilleach
English:
obtuse
Word type:
adjective
More obtuse:
níos maoluillí
Most obtuse:
is maoluillí
Plural:
maoluilleacha
Pronunciation:
“MWEEL-il-yukh”  /ˈmˠiːlˠɪlʲəx/

What does “maoluilleach” mean?

obtuse
Describes an angle greater than a right angle but less than a straight line.Also: obtuse-angled, blunt-angled.

“Maoluilleach” after a noun

An Irish adjective comes after its noun. Here is maoluilleach after triantán (triangle, masculine), after uillinn (elbow, feminine) and after a plural.

after a masculine nountriantán maoluilleachan obtuse triangle
after a feminine nounuillinn mhaoluilleachan obtuse elbow
after a plural nountriantáin mhaoluilleachaobtuse triangles

séimhiú (the h) the ending

feminine
uillinnelbow
+
maoluilleachobtuse
=
uillinn mhaoluilleachan obtuse elbow

After a feminine noun the adjective gets a séimhiú, an h after its first letter: uillinn mhaoluilleach. After a masculine noun it stays as it is: triantán maoluilleach.

plural
triantáintriangles
+
maoluilleachaobtuse, plural
=
triantáin mhaoluilleachaobtuse triangles

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

More obtuse, most obtuse, very obtuse

níosmore
+
maoluillíobtuse
=
níos maoluillímore obtuse
ismost
+
maoluillíobtuse
=
is maoluillímost obtuse

Tá an uillinn seo níos maoluillí ná an ceann eile. This angle is more obtuse than the other one.

more obtuseníos maoluillíin the past tense: ní ba mhaoluillí
most obtuseis maoluillíin the past tense: ba mhaoluillí
as obtuse aschomh maoluilleach leno change after chomh
very obtusean-mhaoluilleachan- lenites, except d, t and s
too obtuserómhaoluilleachró- lenites

“Maoluilleach” in a sentence: Irish examples

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

Tharraing sí triantán maoluilleach ar an gclár.
She drew an obtuse triangle on the board.
Is uillinn mhaoluilleach í sin.
That is an obtuse angle.
Tá dhá thriantán mhaoluilleacha sa leabhar.
There are two obtuse triangles in the book.
Tá an uillinn seo níos maoluillí ná an ceann eile.
This angle is more obtuse than the other one.
Tá an triantán seo maoluilleach.
This triangle is obtuse.

Other adjectives in Irish

More everyday Irish adjectives to learn next.

Obtuse in Irish: frequently asked questions

What is the Irish for obtuse?

The Irish for obtuse is maoluilleach (pronounced “MWEEL-il-yukh”). It comes after the noun: triantán maoluilleach, an obtuse triangle; uillinn mhaoluilleach, an obtuse elbow.

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

níos maoluillí is more obtuse and is maoluillí is most obtuse. In the past tense they become ní ba mhaoluillí and ba mhaoluillí.

Why does maoluilleach become mhaoluilleach?

After a feminine singular noun an adjective is lenited: it gets an h after its first letter. So uillinn mhaoluilleach (an obtuse elbow) but triantán maoluilleach (an obtuse triangle), because triantán is masculine.

What is the plural of maoluilleach?

With a plural noun maoluilleach becomes maoluilleacha: triantáin mhaoluilleacha, uillinneacha maoluilleacha. After a plural that ends in a slender consonant it is lenited as well.

How do you say very obtuse in Irish?

an-mhaoluilleach. Too obtuse is rómhaoluilleach, and as obtuse as is chomh maoluilleach le.

What is the opposite of 'maoluilleach'?

The opposite is 'géaruilleach', acute-angled, and a right-angled triangle is 'triantán dronuilleach'.

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