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Energy in Irish (Fuinniúlacht): Meaning, Pronunciation, Usage

The Irish for energy is fuinniúlacht, a feminine noun.
Updated October 2026Report a mistake

How to say “energy” in Irish

Irish:
fuinniúlacht
English:
energy
Word type:
noun
Gender:
feminine
Pronunciation:
“FWIN-yoo-lukht”  /ˈfˠɪnʲuːl̪ˠəxt̪ˠ/
Various forms
Genitive singular:
fuinniúlachta, na fuinniúlachta (e.g. easpa na fuinniúlachta, the lack of energy)

What does “fuinniúlacht” mean?

energy
The quality of being energetic, full of vigour and drive.Also: energeticness, vigour, vitality, drive.

Other Irish words for energy: fuinneamh (energy), spreacadh (vigour), spionnadh (vigour)

“Fuinniúlacht” with the article

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

an fhuinniúlacht
the energy
Lenition: f becomes fh after an (feminine noun)

“Fuinniúlacht” in a sentence: Irish examples

Common Irish sentences using fuinniúlacht, the Irish word for energy.

Bhí fuinniúlacht iontach ag an gcailín óg.
The young girl had wonderful energy.
Chuir an fhuinniúlacht a bhí ann iontas orainn.
His energy amazed us.
Níl mórán fuinniúlachta ionam inniu.
I don't have much energy today.
Thug sé faoin obair le fuinniúlacht.
He tackled the work energetically.
Is breá liom fuinniúlacht na foirne nua.
I love the new team's energy.
Chaill mé m'fhuinniúlacht le haois.
I lost my vigour with age.
Tá fuinniúlacht le brath sa cheol sin.
There is energy to be felt in that music.

Other nouns in Irish

More everyday Irish nouns to learn next.

Energy in Irish: frequently asked questions

What is the Irish for energy?

The Irish for energy is fuinniúlacht (pronounced “FWIN-yoo-lukht”). It’s a feminine noun.

How do you pronounce fuinniúlacht in Irish?

Fuinniúlacht is said like “FWIN-yoo-lukht” (IPA /ˈfˠɪnʲuːl̪ˠəxt̪ˠ/).

Does fuinniúlacht have a plural?

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

Why does fuinniúlacht change to fhuinniúlacht or bhfuinniúlacht?

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

What is the difference between fuinniúlacht and fuinneamh?

Fuinneamh is the general word for energy, including energy in physics, while fuinniúlacht describes the quality of a person or thing being energetic, from the adjective fuinniúil.

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