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Damp-proof in Irish (taisdíonach): Meaning, Forms, Examples

The Irish for damp-proof is taisdíonach: cúrsa taisdíonach, a damp-proof course.
Updated October 2026Report a mistake

How to say “damp-proof” in Irish

Irish:
taisdíonach
English:
damp-proof
Word type:
adjective
More damp-proof:
níos taisdíonaí
Most damp-proof:
is taisdíonaí
Plural:
taisdíonacha
Pronunciation:
“TASH-dee-uh-nukh”  /ˈt̪ˠaʃˌdʲiːənˠəx/

What does “taisdíonach” mean?

damp-proof
Made or treated so that moisture and damp cannot get through.Also: dampproof, moisture-proof, waterproof.

“Taisdíonach” after a noun

An Irish adjective comes after its noun. Here is taisdíonach after cúrsa (course, masculine), after fuinneog (window, feminine) and after a plural.

after a masculine nouncúrsa taisdíonacha damp-proof course
after a feminine nounfuinneog thaisdíonacha damp-proof window
after a plural nouncúrsaí taisdíonachadamp-proof courses

séimhiú (the h) the ending

feminine
fuinneogwindow
+
taisdíonachdamp-proof
=
fuinneog thaisdíonacha damp-proof window

After a feminine noun the adjective gets a séimhiú, an h after its first letter: fuinneog thaisdíonach. After a masculine noun it stays as it is: cúrsa taisdíonach.

plural
cúrsaícourses
+
taisdíonachadamp-proof, plural
=
cúrsaí taisdíonachadamp-proof courses

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

More damp-proof, most damp-proof, very damp-proof

níosmore
+
taisdíonaídamp-proof
=
níos taisdíonaímore damp-proof
ismost
+
taisdíonaídamp-proof
=
is taisdíonaímost damp-proof

Tá an t-ábhar seo níos taisdíonaí ná an ceann eile. This material is more damp-proof than the other one.

more damp-proofníos taisdíonaíin the past tense: ní ba thaisdíonaí
most damp-proofis taisdíonaíin the past tense: ba thaisdíonaí
as damp-proof aschomh taisdíonach leno change after chomh
very damp-proofan-taisdíonachan- lenites, except d, t and s
too damp-proofróthaisdíonachró- lenites

“Taisdíonach” in a sentence: Irish examples

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

Tá cúrsa taisdíonach sa bhalla seo.
There is a damp-proof course in this wall.
Cheannaigh sé péint thaisdíonach don seomra.
He bought damp-proof paint for the room.
Tá ballaí taisdíonacha sa teach nua.
The new house has damp-proof walls.
Tá an t-ábhar seo níos taisdíonaí ná an ceann eile.
This material is more damp-proof than the other one.
Tá an t-urlár taisdíonach anois.
The floor is damp-proof now.

Other adjectives in Irish

More everyday Irish adjectives to learn next.

Damp-proof in Irish: frequently asked questions

What is the Irish for damp-proof?

The Irish for damp-proof is taisdíonach (pronounced “TASH-dee-uh-nukh”). It comes after the noun: cúrsa taisdíonach, a damp-proof course; fuinneog thaisdíonach, a damp-proof window.

How do you say more damp-proof and most damp-proof in Irish?

níos taisdíonaí is more damp-proof and is taisdíonaí is most damp-proof. In the past tense they become ní ba thaisdíonaí and ba thaisdíonaí.

Why does taisdíonach become thaisdíonach?

After a feminine singular noun an adjective is lenited: it gets an h after its first letter. So fuinneog thaisdíonach (a damp-proof window) but cúrsa taisdíonach (a damp-proof course), because cúrsa is masculine.

What is the plural of taisdíonach?

With a plural noun taisdíonach becomes taisdíonacha: cúrsaí taisdíonacha, fuinneoga taisdíonacha.

How do you say very damp-proof in Irish?

an-taisdíonach. Too damp-proof is róthaisdíonach, and as damp-proof as is chomh taisdíonach le.

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

'Taisdíonach' means damp-proof, keeping out moisture, as in 'cúrsa taisdíonach', while 'uiscedhíonach' means waterproof, keeping out water itself, as in 'cóta uiscedhíonach'.

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