HeyRua Get the app

Decline in Irish (Meathlú): Meaning, Pronunciation, Usage

‘meathlú’ also means: degeneration

The Irish for decline is meathlú, a masculine noun. Ag meathlú is declining, from the verb meathlaigh.
Updated October 2026Report a mistake

How to say “decline” in Irish

Irish:
meathlú
English:
decline, degeneration
Word type:
noun (verbal noun)
Verbal noun of:
meathlaigh, to decline (ag meathlú, declining)
Gender:
masculine
Pronunciation:
“MAH-loo”  /ˈmʲahl̪ˠuː/
Various forms
Genitive singular:
meathlaithe, an mheathlaithe (e.g. cúis an mheathlaithe, the cause of the decline)

What does “meathlú” mean?

“Meathlú” has two alternative meanings. The most common comes first.

decline
The verbal noun of 'meathlaigh': the process of getting weaker, worse or smaller over time.Also: decay, deterioration, degeneration, failing.
1 other meaning: degeneration
2degeneration
A gradual wasting or breaking down, for example of tissue, health or a community.Also: decay, wasting, atrophy.

Other Irish words for decline: diúltaigh (refuse), meath (decline), meath (decline)

“Meathlú” as a verbal noun

After ag, meathlú means declining: it is the verbal noun of the verb meathlaigh (to decline). A noun that follows it goes into the genitive.

agat
+
meathlúverbal noun
=
ag meathlúdeclining

“Meathlú” with the article

Here is meathlú after the article (an t-alt).

an meathlú
the decline
No change after an

“Meathlú” in a sentence: Irish examples

Common Irish sentences using meathlú, the Irish word for decline.

Tá meathlú ag teacht ar an teanga sa cheantar.
The language is declining in the area.
Bhí an meathlú le feiceáil go soiléir.
The decline was plainly visible.
Ní féidir stop a chur leis an meathlú.
The decline can't be stopped.
Tá imní orainn faoi mheathlú an bhaile.
We are worried about the town's decline.
Labhair sé faoi chúiseanna an mheathlaithe.
He spoke about the causes of the decline.
Tháinig meathlú ar a shláinte le blianta beaga.
His health has deteriorated in recent years.
Is comhartha meathlaithe é sin, dar leis an dochtúir.
That is a sign of degeneration, according to the doctor.

Other nouns in Irish

More everyday Irish nouns to learn next.

Decline in Irish: frequently asked questions

What is the Irish for decline?

The Irish for decline is meathlú (pronounced “MAH-loo”). It’s a masculine noun. Depending on context it can also mean degeneration.

How do you pronounce meathlú in Irish?

Meathlú is said like “MAH-loo” (IPA /ˈmʲahl̪ˠuː/).

Does meathlú have a plural?

No plural form is given for meathlú in the standard. Many abstract and mass nouns in Irish have no plural.

Does meathlú have more than one meaning?

Yes. Meathlú can mean decline or degeneration, depending on context; the first is the most common.

Why does meathlú change to mheathlú?

After words like mo (my) and do (your) the first letter is lenited: mo mheathlú. After ár (our) it stays ár meathlú, because m does not take eclipsis.

What is the difference between 'meath' and 'meathlú'?

Both mean decline or decay; 'meath' is the older general noun, while 'meathlú' is the verbal noun of 'meathlaigh' and stresses the ongoing process, as in 'tá meathlú ag teacht air'.

Learn Irish by
actually speaking it

Learn everyday Irish words like meathlú through guided conversation with Rua.

7-day free trial. Cancel anytime.

The HeyRua app home screen