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mwyaf

most; biggest

AdjectiveA1/ˈmʊɨ̯.av/

"mwyaf" means "most; biggest" in Welsh (adjective). Pronounced /ˈmʊɨ̯.av/. Mutation forms: Treiglad Meddal → fwyaf.

Mutation forms

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

MutationForm
Base formmwyaf
Treiglad Meddalfwyaf

"mwyaf" in context

Dyma'r dyn eira mwyaf hyll 'dw i erioed wedi'i weld!

This is the ugliest snowman I've ever seen!

B2

Mae gennym y targed tai cymdeithasol mwyaf uchelgeisiol yn hanes ein cenedl, targed rydym yn ei gefnogi gyda'r lefel uchaf erioed o gyllid, sef bron i £2 biliwn dros dymor y Senedd hon.

We have the most ambitious social housing target in our nation’s history, which we're backing with record funding of nearly £2 billion over this Senedd term.

B2

O ran Bil Diogelwch Adeiladau (Cymru), fe fyddwch hefyd yn gwybod ein bod yn bwriadu cyflwyno hyn fesul cam, gan ddechrau'n fwyaf arbennig gydag adeiladau categori 1, sef yr adeiladau mwyaf cymhleth bob amser, yr adeiladau uwch.

In terms of the Building Safety (Wales) Bill, you'll also know that we intend to introduce this in a phased approach, starting particularly with category 1 buildings, which are always the most complex buildings, the higher buildings.

C1

Hyd nes y cawn ragor o wybodaeth i redeg y setliad gyda'r data wedi'i ddiweddaru, a'r amcangyfrifon poblogaeth yw'r data mwyaf arwyddocaol, ni allwn ystyried yr effaith ar ddosbarthiad y setliad.

Until we have more information to run the settlement with the updated data, the most significant being the population estimates, we can't consider the impact on the settlement distribution.

C1

Mae ein heriau mwyaf o ran recriwtio a chadw yn yr ysgol uwchradd, ac yna'n cael eu dwysáu mewn addysg gyfrwng Cymraeg, ac rwy'n bryderus iawn am hynny.

Our biggest challenges in recruitment and retention are in secondary school, and, actually, then compounded with Welsh medium, and I am really concerned about that.

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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Related Welsh words

unig

only

uchel

high

araf

slow

cyflym

fast

tlawd

poor

budr

vile

bach

small

cyntaf

first

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