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Waterproof in Irish (díonach): Meaning, Forms, Examples

Other uses of ‘díonach’: sheltering

The Irish for waterproof is díonach: cóta díonach, a waterproof coat.
Updated October 2026Report a mistake

How to say “waterproof” in Irish

Irish:
díonach
English:
waterproof, sheltering
Word type:
adjective
More waterproof:
níos díonaí
Most waterproof:
is díonaí
Plural:
díonacha
Pronunciation:
“DEE-nukh”  /ˈdʲiːnˠəx/

What does “díonach” mean?

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

waterproof
Not letting water or rain through; weatherproof.Also: watertight, rainproof, impermeable, weatherproof.
1 other meaning: sheltering
2sheltering
Giving shelter or protection, especially from the weather.Also: protective, snug.

Other Irish adjectives for waterproof: uiscedhíonach (waterproof)

“Díonach” after a noun

An Irish adjective comes after its noun. Here is díonach after cóta (coat, masculine), after bróg (shoe, feminine) and after a plural.

after a masculine nouncóta díonacha waterproof coat
after a feminine nounbróg dhíonacha waterproof shoe
after a plural nouncótaí díonachawaterproof coats

séimhiú (the h) the ending

feminine
brógshoe
+
díonachwaterproof
=
bróg dhíonacha waterproof shoe

After a feminine noun the adjective gets a séimhiú, an h after its first letter: bróg dhíonach. After a masculine noun it stays as it is: cóta díonach.

plural
cótaícoats
+
díonachawaterproof, plural
=
cótaí díonachawaterproof coats

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

More waterproof, most waterproof, very waterproof

níosmore
+
díonaíwaterproof
=
níos díonaímore waterproof
ismost
+
díonaíwaterproof
=
is díonaímost waterproof
more waterproofníos díonaíin the past tense: ní ba dhíonaí
most waterproofis díonaíin the past tense: ba dhíonaí
as waterproof aschomh díonach leno change after chomh
very waterproofan-díonachan- lenites, except d, t and s
too waterproofródhíonachró- lenites

“Díonach” in a sentence: Irish examples

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

Cheannaigh mé cóta díonach inné.
I bought a waterproof coat yesterday.
Tá bróg dhíonach ag teastáil uaim don gheimhreadh.
I need a waterproof shoe for the winter.
Caith buataisí díonacha ar an sliabh.
Wear waterproof boots on the mountain.
An bhfuil an mála seo díonach?
Is this bag waterproof?
Tá an puball díonach go maith.
The tent is quite waterproof.

Other adjectives in Irish

More everyday Irish adjectives to learn next.

Waterproof in Irish: frequently asked questions

What is the Irish for waterproof?

The Irish for waterproof is díonach (pronounced “DEE-nukh”). It comes after the noun: cóta díonach, a waterproof coat; bróg dhíonach, a waterproof shoe.

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

níos díonaí is more waterproof and is díonaí is most waterproof. In the past tense they become ní ba dhíonaí and ba dhíonaí.

Why does díonach become dhíonach?

After a feminine singular noun an adjective is lenited: it gets an h after its first letter. So bróg dhíonach (a waterproof shoe) but cóta díonach (a waterproof coat), because cóta is masculine.

What is the plural of díonach?

With a plural noun díonach becomes díonacha: cótaí díonacha, bróga díonacha.

How do you say very waterproof in Irish?

an-díonach. Too waterproof is ródhíonach, and as waterproof as is chomh díonach le.

Does díonach have more than one meaning?

Yes. Díonach can mean waterproof or sheltering, depending on context; the first is the most common.

What is the difference between 'díonach' and 'uiscedhíonach'?

'Uiscedhíonach' specifically means waterproof, while 'díonach' can also mean proof against weather in general or sheltering. Both are used for clothing, e.g. 'cóta díonach'.

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