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Antibiotic in Irish (Antaibheathach): Meaning, Pronunciation, Usage

The Irish for antibiotic is antaibheathach, a masculine noun (plural antaibheathaigh).
Updated October 2026Report a mistake

How to say “antibiotic” in Irish

Irish:
antaibheathach
English:
antibiotic
Word type:
noun
Gender:
masculine, first declension
Pronunciation:
“AN-tuh-vah-hukh”  /ˈant̪ˠəˌvʲahəx/
Various forms
Plural:
antaibheathaigh (antibiotics)
Genitive singular:
antaibheathaigh, an antaibheathaigh (e.g. éifeacht an antaibheathaigh, the effect of the antibiotic)
Genitive plural:
antaibheathach, na n-antaibheathach (e.g. úsáid na n-antaibheathach, the use of the antibiotics)

What does “antaibheathach” mean?

antibiotic
A medicine that kills bacteria or stops them growing, used to treat infections.Also: antibiotic medicine, antibiotic drug.

“Antaibheathach” with the article

The plural of antibiotic in Irish is antaibheathaigh. Here is antaibheathach after the article (an t-alt), in the singular and the plural.

an t-antaibheathach
the antibiotic
Masculine nouns take t before a vowel after an
na hantaibheathaigh
the antibiotics
Plural: na adds h before a vowel

“Antaibheathach” in a sentence: Irish examples

Common Irish sentences using antaibheathach, the Irish word for antibiotic.

Thug an dochtúir antaibheathach dom.
The doctor gave me an antibiotic.
Ní oibríonn antaibheathaigh in aghaidh víreas.
Antibiotics don't work against viruses.
Caithfidh tú an t-antaibheathach a thógáil go ceann seachtaine.
You have to take the antibiotic for a week.
Tá mo mhac ar antaibheathaigh faoi láthair.
My son is on antibiotics at the moment.
Bhí frithghníomh agam leis an antaibheathach sin.
I had a reaction to that antibiotic.
Is fadhb mhór í friotaíocht in aghaidh antaibheathach.
Antibiotic resistance is a big problem.
Tá blas searbh ar an antaibheathach seo.
This antibiotic has a bitter taste.

Other nouns in Irish

More everyday Irish nouns to learn next.

Antibiotic in Irish: frequently asked questions

What is the Irish for antibiotic?

The Irish for antibiotic is antaibheathach (pronounced “AN-tuh-vah-hukh”). It’s a masculine noun and the plural is antaibheathaigh.

How do you pronounce antaibheathach in Irish?

Antaibheathach is said like “AN-tuh-vah-hukh” (IPA /ˈant̪ˠəˌvʲahəx/).

What is the plural of antibiotic in Irish?

The plural of antaibheathach is antaibheathaigh; with the article, na hantaibheathaigh means “the antibiotics”. The genitive plural is antaibheathach, as in úsáid na n-antaibheathach (the use of the antibiotics).

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

Irish nouns beginning with a vowel take a prefix after certain words: an t-antaibheathach (the antibiotic), a hantaibheathach (her antibiotic), a n-antaibheathach (their antibiotic), na hantaibheathaigh (the antibiotics).

How do I say 'I am on antibiotics' in Irish?

Say 'Tá mé ar antaibheathaigh', using 'ar' just as English uses 'on'.

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