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iawn

right

NounMasculine (gwrywaidd)A1/jau̯n/

"iawn" means "right" in Welsh (masculine noun). Pronounced /jau̯n/. Mutation forms: Treiglad Llaes → hiawn.

Mutation forms

In Welsh, the first letter of "iawn" changes depending on the grammatical context. These are the mutated forms:

MutationForm
Base formiawn
Treiglad Llaeshiawn

"iawn" in context

Mae hi'n braf iawn heddiw.

It is very fine today.

A2

Mae o'n hunanol iawn.

He's really selfish.

A2

Gwna beth sy'n iawn.

Do what is right.

A2

Mae'r trên yn gyflym iawn.

The train is very fast.

B1

Roedd hi'n niwlog iawn.

It was very misty.

B2

Further reading

Welsh Mutations Explained — Soft, Nasal & Aspirate →Welsh Pronunciation — It's Actually Easier Than English →How to Learn Welsh as an Adult — A Step-by-Step Roadmap →Best Apps to Learn Welsh (2026) →Browse all Welsh vocabulary →

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