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Obsession in Irish (Oibseisiún): Meaning, Pronunciation, Usage

The Irish for obsession is oibseisiún, a masculine noun (plural oibseisiúin).
Updated October 2026Report a mistake

How to say “obsession” in Irish

Irish:
oibseisiún
English:
obsession
Word type:
noun
Gender:
masculine, first declension
Pronunciation:
“eb-SHESH-oon”  /ɛbʲˈʃɛʃuːnˠ/
Various forms
Plural:
oibseisiúin (obsessions)
Genitive singular:
oibseisiúin, an oibseisiúin (e.g. neart an oibseisiúin, the strength of the obsession)
Genitive plural:
oibseisiún, na n-oibseisiún (e.g. líon na n-oibseisiún, the number of obsessions)

What does “oibseisiún” mean?

obsession
An idea, interest or feeling that fills a person's mind constantly and that they cannot stop thinking about.Also: fixation, preoccupation, compulsion.

“Oibseisiún” with the article

The plural of obsession in Irish is oibseisiúin. Here is oibseisiún after the article (an t-alt), in the singular and the plural.

an t-oibseisiún
the obsession
Masculine nouns take t before a vowel after an
na hoibseisiúin
the obsessions
Plural: na adds h before a vowel

“Oibseisiún” in a sentence: Irish examples

Common Irish sentences using oibseisiún, the Irish word for obsession.

Is oibseisiún í an pheil aige.
Football is an obsession with him.
Tá an t-oibseisiún sin ag dul in olcas.
That obsession is getting worse.
Ní thuigim cúis an oibseisiúin seo.
I don't understand the cause of this obsession.
Tá oibseisiúin aisteacha ag go leor daoine.
Lots of people have strange obsessions.
Is é m'oibseisiún is mó ná ceol.
My biggest obsession is music.
Bhí sí gafa in oibseisiún le glaineacht.
She was caught up in an obsession with cleanliness.
Labhair an dochtúir faoin oibseisiún a bhí air.
The doctor talked about the obsession he had.

Other nouns in Irish

More everyday Irish nouns to learn next.

Obsession in Irish: frequently asked questions

What is the Irish for obsession?

The Irish for obsession is oibseisiún (pronounced “eb-SHESH-oon”). It’s a masculine noun and the plural is oibseisiúin.

How do you pronounce oibseisiún in Irish?

Oibseisiún is said like “eb-SHESH-oon” (IPA /ɛbʲˈʃɛʃuːnˠ/).

What is the plural of obsession in Irish?

The plural of oibseisiún is oibseisiúin; with the article, na hoibseisiúin means “the obsessions”. The genitive plural is oibseisiún, as in líon na n-oibseisiún (the number of obsessions).

Why does oibseisiún sometimes have a t or h in front of it?

Irish nouns beginning with a vowel take a prefix after certain words: an t-oibseisiún (the obsession), a hoibseisiún (her obsession), a n-oibseisiún (their obsession), na hoibseisiúin (the obsessions).

Is there a more native way to say someone is obsessed with something?

Yes, speakers often say 'tá sé craiceáilte i ndiaidh ...' or 'tá dúil as cuimse aige i ...', while 'oibseisiún' is the more formal or clinical term.

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