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Illegitimate in Irish (mídhlisteanach): Meaning, Forms, Examples

Other uses of ‘mídhlisteanach’: illegitimate (of a child)

The Irish for illegitimate is mídhlisteanach: rialtas mídhlisteanach, an illegitimate government.
Updated October 2026Report a mistake

How to say “illegitimate” in Irish

Irish:
mídhlisteanach
English:
illegitimate, illegitimate (of a child)
Word type:
adjective
More illegitimate:
níos mídhlisteanaí
Most illegitimate:
is mídhlisteanaí
Plural:
mídhlisteanacha
Pronunciation:
“MEE-ghlish-tya-nakh”  /ˈmʲiːɣlʲiʃtʲənˠəx/

What does “mídhlisteanach” mean?

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

illegitimate
Not lawful or not recognised as valid or proper.Also: unlawful, illegal, invalid.
1 other meaning: illegitimate (of a child)
2illegitimate (of a child)
Born to parents who were not married to each other.Also: illegitimate, born out of wedlock.

“Mídhlisteanach” after a noun

An Irish adjective comes after its noun. Here is mídhlisteanach after rialtas (government, masculine), after céim (step, feminine) and after a plural.

after a masculine nounrialtas mídhlisteanachan illegitimate government
after a feminine nouncéim mhídhlisteanachan illegitimate step
after a plural nounrialtais mhídhlisteanachaillegitimate governments

séimhiú (the h) the ending

feminine
céimstep
+
mídhlisteanachillegitimate
=
céim mhídhlisteanachan illegitimate step

After a feminine noun the adjective gets a séimhiú, an h after its first letter: céim mhídhlisteanach. After a masculine noun it stays as it is: rialtas mídhlisteanach.

plural
rialtaisgovernments
+
mídhlisteanachaillegitimate, plural
=
rialtais mhídhlisteanachaillegitimate governments

With a plural noun the adjective takes its plural form, mídhlisteanacha. It also gets an h after a plural that ends in a slender consonant: rialtais mhídhlisteanacha; after other plurals it does not: céimeanna mídhlisteanacha.

More illegitimate, most illegitimate, very illegitimate

níosmore
+
mídhlisteanaíillegitimate
=
níos mídhlisteanaímore illegitimate
ismost
+
mídhlisteanaíillegitimate
=
is mídhlisteanaímost illegitimate

Bhí an dara réimeas níos mídhlisteanaí ná an chéad cheann. The second regime was more illegitimate than the first.

more illegitimateníos mídhlisteanaíin the past tense: ní ba mhídhlisteanaí
most illegitimateis mídhlisteanaíin the past tense: ba mhídhlisteanaí
as illegitimate aschomh mídhlisteanach leno change after chomh
very illegitimatean-mhídhlisteanachan- lenites, except d, t and s
too illegitimaterómhídhlisteanachró- lenites

“Mídhlisteanach” in a sentence: Irish examples

With a masculine noun, a feminine noun, a plural, a comparison and on its own.

Dúirt siad gur rialtas mídhlisteanach a bhí ann.
They said it was an illegitimate government.
Ba chéim mhídhlisteanach í sin.
That was an illegitimate step.
Cuireadh na toghcháin mhídhlisteanacha ar ceal.
The illegitimate elections were cancelled.
Bhí an dara réimeas níos mídhlisteanaí ná an chéad cheann.
The second regime was more illegitimate than the first.
Tá an cinneadh sin mídhlisteanach.
That decision is illegitimate.

Other adjectives in Irish

More everyday Irish adjectives to learn next.

Illegitimate in Irish: frequently asked questions

What is the Irish for illegitimate?

The Irish for illegitimate is mídhlisteanach (pronounced “MEE-ghlish-tya-nakh”). It comes after the noun: rialtas mídhlisteanach, an illegitimate government; céim mhídhlisteanach, an illegitimate step.

How do you say more illegitimate and most illegitimate in Irish?

níos mídhlisteanaí is more illegitimate and is mídhlisteanaí is most illegitimate. In the past tense they become ní ba mhídhlisteanaí and ba mhídhlisteanaí.

Why does mídhlisteanach become mhídhlisteanach?

After a feminine singular noun an adjective is lenited: it gets an h after its first letter. So céim mhídhlisteanach (an illegitimate step) but rialtas mídhlisteanach (an illegitimate government), because rialtas is masculine.

What is the plural of mídhlisteanach?

With a plural noun mídhlisteanach becomes mídhlisteanacha: rialtais mhídhlisteanacha, céimeanna mídhlisteanacha. After a plural that ends in a slender consonant it is lenited as well.

How do you say very illegitimate in Irish?

an-mhídhlisteanach. Too illegitimate is rómhídhlisteanach, and as illegitimate as is chomh mídhlisteanach le.

Does mídhlisteanach have more than one meaning?

Yes. Mídhlisteanach can mean illegitimate or illegitimate (of a child), depending on context; the first is the most common.

What is the difference between 'mídhlisteanach' and 'mídhleathach'?

'Mídhlisteanach' means illegitimate, lacking rightful authority or validity, while 'mídhleathach' means illegal, against the law.

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