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effeithlon

efficient

AdjectiveC1/ɛˈfei̯θlɔn/

"effeithlon" means "efficient" in Welsh (adjective). Pronounced /ɛˈfei̯θlɔn/. Mutation forms: Treiglad Llaes → heffeithlon.

Mutation forms

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

MutationForm
Base formeffeithlon
Treiglad Llaesheffeithlon

"effeithlon" in context

Pa mor effeithlon y mae’r adeilad hwn yn cael ei ddefnyddio?

How efficiently is this building being used?

A2

Yma nodir pa mor effeithlon y mae ynni wedi cael ei ddefnyddio yn yr adeilad hwn dros y tri chyfnod cyfrifo diwethaf.

This tells you how efficiently energy has been used in this building over the last three accounting periods.

C1

Y gobaith oedd y byddai buddsoddiad mewn gwasanaethau yn arwain at system fwy effeithlon a allai fynd i'r afael â'r pryderon parhaus hyn.

It was hoped that an investment in services would result in a more efficient system, which could address these ongoing concerns.

C1

Gan barhau â'r duedd a welsom dros y blynyddoedd blaenorol, roedd cyfranogwyr unwaith eto'n ffafrio gwario arian yn fwy effeithlon cyn ystyried codi arian trwy drethiant neu fenthyca.

Continuing with the trend we have seen over previous years, participants again favoured more efficient spending of funds before raising funds through taxation or borrowing is considered.

C1

Felly, mae system gynllunio effeithiol ac effeithlon yn hanfodol, ac rwy'n credu bod symleiddio a moderneiddio'r gyfraith, drwy gydgrynhoi, yn rhagofyniad i gyflawni hyn.

An effective and efficient planning system is therefore vital, and I believe the simplification and modernisation of the law, through consolidation, is a prerequisite to achieving this.

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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only

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high

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slow

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fast

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