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Rustproof in Irish (meirgdhíonach): Meaning, Forms, Examples

The Irish for rustproof is meirgdhíonach: scriú meirgdhíonach, a rustproof screw.
Updated October 2026Report a mistake

How to say “rustproof” in Irish

Irish:
meirgdhíonach
English:
rustproof
Word type:
adjective
More rustproof:
níos meirgdhíonaí
Most rustproof:
is meirgdhíonaí
Plural:
meirgdhíonacha
Pronunciation:
“MER-eg-yee-uh-nukh”  /ˈmʲɛɾʲəɡʲˌiːənˠəx/

What does “meirgdhíonach” mean?

rustproof
Made or treated so that it does not rust.Also: rust-resistant, non-rusting, stainless.

“Meirgdhíonach” after a noun

An Irish adjective comes after its noun. Here is meirgdhíonach after scriú (screw, masculine), after scian (knife, feminine) and after a plural.

after a masculine nounscriú meirgdhíonacha rustproof screw
after a feminine nounscian mheirgdhíonacha rustproof knife
after a plural nounscriúnna meirgdhíonacharustproof screws

séimhiú (the h) the ending

feminine
scianknife
+
meirgdhíonachrustproof
=
scian mheirgdhíonacha rustproof knife

After a feminine noun the adjective gets a séimhiú, an h after its first letter: scian mheirgdhíonach. After a masculine noun it stays as it is: scriú meirgdhíonach.

plural
scriúnnascrews
+
meirgdhíonacharustproof, plural
=
scriúnna meirgdhíonacharustproof screws

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

More rustproof, most rustproof, very rustproof

níosmore
+
meirgdhíonaírustproof
=
níos meirgdhíonaímore rustproof
ismost
+
meirgdhíonaírustproof
=
is meirgdhíonaímost rustproof

Tá an miotal seo níos meirgdhíonaí ná iarann. This metal is more rust-resistant than iron.

more rustproofníos meirgdhíonaíin the past tense: ní ba mheirgdhíonaí
most rustproofis meirgdhíonaíin the past tense: ba mheirgdhíonaí
as rustproof aschomh meirgdhíonach leno change after chomh
very rustproofan-mheirgdhíonachan- lenites, except d, t and s
too rustproofrómheirgdhíonachró- lenites

“Meirgdhíonach” in a sentence: Irish examples

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

Cheannaigh mé scriú meirgdhíonach sa siopa.
I bought a rustproof screw in the shop.
Tá sluasaid mheirgdhíonach sa gharáiste.
There is a rustproof shovel in the garage.
Úsáid tairní meirgdhíonacha taobh amuigh.
Use rustproof nails outside.
Tá an miotal seo níos meirgdhíonaí ná iarann.
This metal is more rust-resistant than iron.
Tá an geata meirgdhíonach.
The gate is rustproof.

Other adjectives in Irish

More everyday Irish adjectives to learn next.

Rustproof in Irish: frequently asked questions

What is the Irish for rustproof?

The Irish for rustproof is meirgdhíonach (pronounced “MER-eg-yee-uh-nukh”). It comes after the noun: scriú meirgdhíonach, a rustproof screw; scian mheirgdhíonach, a rustproof knife.

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

níos meirgdhíonaí is more rustproof and is meirgdhíonaí is most rustproof. In the past tense they become ní ba mheirgdhíonaí and ba mheirgdhíonaí.

Why does meirgdhíonach become mheirgdhíonach?

After a feminine singular noun an adjective is lenited: it gets an h after its first letter. So scian mheirgdhíonach (a rustproof knife) but scriú meirgdhíonach (a rustproof screw), because scriú is masculine.

What is the plural of meirgdhíonach?

With a plural noun meirgdhíonach becomes meirgdhíonacha: scriúnna meirgdhíonacha, sceana meirgdhíonacha.

How do you say very rustproof in Irish?

an-mheirgdhíonach. Too rustproof is rómheirgdhíonach, and as rustproof as is chomh meirgdhíonach le.

How is 'meirgdhíonach' formed?

It combines 'meirg' (rust) with '-dhíonach' (proof), like 'uiscedhíonach' (waterproof).

What is the opposite of 'meirgdhíonach'?

Something that has rusted is 'meirgeach' (rusty).

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