HeyRua Get the app

Diagonal in Irish (trasnánach): Meaning, Forms, Examples

Other uses of ‘trasnánach’: transverse

The Irish for diagonal is trasnánach: gearradh trasnánach, a diagonal cut.
Updated October 2026Report a mistake

How to say “diagonal” in Irish

Irish:
trasnánach
English:
diagonal, transverse
Word type:
adjective
More diagonal:
níos trasnánaí
Most diagonal:
is trasnánaí
Plural:
trasnánacha
Pronunciation:
“TRAS-naw-nukh”  /ˈt̪ˠɾˠasˠn̪ˠaːn̪ˠəx/

What does “trasnánach” mean?

“Trasnánach” has two alternative meanings. The most common comes first.

diagonal
Running slantwise from one corner to the opposite corner.Also: slanting, oblique, crosswise.
1 other meaning: transverse
2transverse
Lying or running across something rather than along it.Also: crosswise, cross, lateral.

“Trasnánach” after a noun

An Irish adjective comes after its noun. Here is trasnánach after gearradh (cut, masculine), after cathair (city, feminine) and after a plural.

after a masculine noungearradh trasnánacha diagonal cut
after a feminine nouncathair thrasnánacha diagonal city
after a plural noungearrthacha trasnánachadiagonal cuts

séimhiú (the h) the ending

feminine
cathaircity
+
trasnánachdiagonal
=
cathair thrasnánacha diagonal city

After a feminine noun the adjective gets a séimhiú, an h after its first letter: cathair thrasnánach. After a masculine noun it stays as it is: gearradh trasnánach.

plural
gearrthachacuts
+
trasnánachadiagonal, plural
=
gearrthacha trasnánachadiagonal cuts

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

More diagonal, most diagonal, very diagonal

níosmore
+
trasnánaídiagonal
=
níos trasnánaímore diagonal
ismost
+
trasnánaídiagonal
=
is trasnánaímost diagonal

Tá an líne seo níos trasnánaí ná an ceann eile. This line is more diagonal than the other one.

more diagonalníos trasnánaíin the past tense: ní ba thrasnánaí
most diagonalis trasnánaíin the past tense: ba thrasnánaí
as diagonal aschomh trasnánach leno change after chomh
very diagonalan-trasnánachan- lenites, except d, t and s
too diagonalróthrasnánachró- lenites

“Trasnánach” in a sentence: Irish examples

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

Tharraing sé stríoc thrasnánach ar an bpáipéar.
He drew a diagonal stripe on the paper.
Tharraing an múinteoir líne thrasnánach ar an gclár.
The teacher drew a diagonal line on the board.
Tá stríoca trasnánacha ar an mbratach.
There are diagonal stripes on the flag.
Tá an líne seo níos trasnánaí ná an ceann eile.
This line is more diagonal than the other one.
Tá an cosán trasna na páirce trasnánach.
The path across the field is diagonal.

Other adjectives in Irish

More everyday Irish adjectives to learn next.

Diagonal in Irish: frequently asked questions

What is the Irish for diagonal?

The Irish for diagonal is trasnánach (pronounced “TRAS-naw-nukh”). It comes after the noun: gearradh trasnánach, a diagonal cut; cathair thrasnánach, a diagonal city.

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

níos trasnánaí is more diagonal and is trasnánaí is most diagonal. In the past tense they become ní ba thrasnánaí and ba thrasnánaí.

Why does trasnánach become thrasnánach?

After a feminine singular noun an adjective is lenited: it gets an h after its first letter. So cathair thrasnánach (a diagonal city) but gearradh trasnánach (a diagonal cut), because gearradh is masculine.

What is the plural of trasnánach?

With a plural noun trasnánach becomes trasnánacha: gearrthacha trasnánacha, cathracha trasnánacha.

How do you say very diagonal in Irish?

an-trasnánach. Too diagonal is róthrasnánach, and as diagonal as is chomh trasnánach le.

Does trasnánach have more than one meaning?

Yes. Trasnánach can mean diagonal or transverse, depending on context; the first is the most common.

What is the difference between 'trasnánach' and 'fiar'?

'Trasnánach' means diagonal or transverse, especially in geometry, while 'fiar' means slanting or crooked more generally.

Learn Irish by
actually speaking it

Learn everyday Irish words like trasnánach through guided conversation with Rua.

7-day free trial. Cancel anytime.

The HeyRua app home screen