HeyRua Get the app

Functionality in Irish (Feidhmiúlacht): Meaning, Pronunciation, Usage

‘feidhmiúlacht’ also means: efficiency

The Irish for functionality is feidhmiúlacht, a feminine noun (plural feidhmiúlachtaí).
Updated October 2026Report a mistake

How to say “functionality” in Irish

Irish:
feidhmiúlacht
English:
functionality, efficiency
Word type:
noun
Gender:
feminine, third declension
Pronunciation:
“FAY-voo-lukht”  /ˈfʲeːvʲuːl̪ˠəxt̪ˠ/
Various forms
Plural:
feidhmiúlachtaí (functionalities)
Genitive singular:
feidhmiúlachta, na feidhmiúlachta (e.g. leibhéal na feidhmiúlachta, level of functionality)
Genitive plural:
feidhmiúlachtaí, na bhfeidhmiúlachtaí (e.g. liosta na bhfeidhmiúlachtaí, the list of functionalities)

What does “feidhmiúlacht” mean?

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

functionality
The quality of being practical and working well for its purpose, or the range of functions something can perform.Also: practicality, usefulness, function.
1 other meaning: efficiency
2efficiency
The quality of doing a job effectively and in a businesslike way.Also: effectiveness, competence.

“Feidhmiúlacht” with the article

The plural of functionality in Irish is feidhmiúlachtaí. Here is feidhmiúlacht after the article (an t-alt), in the singular and the plural.

an fheidhmiúlacht
the functionality
Lenition: f becomes fh after an (feminine noun)
na feidhmiúlachtaí
the functionalities
Plural: no change after na

“Feidhmiúlacht” in a sentence: Irish examples

Common Irish sentences using feidhmiúlacht, the Irish word for functionality.

Tá feidhmiúlacht an dearaidh seo an-mhaith.
The functionality of this design is very good.
Cuireadh feidhmiúlacht nua leis an aip.
New functionality was added to the app.
Is tábhachtaí an fheidhmiúlacht ná an chuma.
Functionality matters more than appearance.
Bhí easpa feidhmiúlachta sa chóras nua.
The new system lacked functionality.
Rinneamar tástáil ar na feidhmiúlachtaí go léir.
We tested all the functions.
Tá feabhas mór ar fheidhmiúlacht na hoifige.
The office's efficiency has improved greatly.
Chuireamar béim ar fheidhmiúlacht sa togra.
We emphasised practicality in the project.

Other nouns in Irish

More everyday Irish nouns to learn next.

Functionality in Irish: frequently asked questions

What is the Irish for functionality?

The Irish for functionality is feidhmiúlacht (pronounced “FAY-voo-lukht”). It’s a feminine noun and the plural is feidhmiúlachtaí. Depending on context it can also mean efficiency.

How do you pronounce feidhmiúlacht in Irish?

Feidhmiúlacht is said like “FAY-voo-lukht” (IPA /ˈfʲeːvʲuːl̪ˠəxt̪ˠ/).

What is the plural of functionality in Irish?

The plural of feidhmiúlacht is feidhmiúlachtaí; with the article, na feidhmiúlachtaí means “the functionalities”. The genitive plural is feidhmiúlachtaí, as in liosta na bhfeidhmiúlachtaí (the list of functionalities).

Does feidhmiúlacht have more than one meaning?

Yes. Feidhmiúlacht can mean functionality or efficiency, depending on context; the first is the most common.

Why does feidhmiúlacht change to fheidhmiúlacht or bhfeidhmiúlacht?

Irish changes the start of some words after certain words. After mo (my) feidhmiúlacht becomes m'fheidhmiúlacht (lenition), and after ár (our) or i (in) it becomes ár bhfeidhmiúlacht (eclipsis).

How is feidhmiúlacht different from feidhm?

Feidhm means a function or use itself, while feidhmiúlacht is the quality of being functional or efficient.

Learn Irish by
actually speaking it

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

7-day free trial. Cancel anytime.

The HeyRua app home screen