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Mischievous in Irish (mísciúil): Meaning, Forms, Examples

Other uses of ‘mísciúil’: harmful

The Irish for mischievous is mísciúil: buachaill mísciúil, a mischievous boy.
Updated October 2026Report a mistake

How to say “mischievous” in Irish

Irish:
mísciúil
English:
mischievous, harmful
Word type:
adjective
More mischievous:
níos mísciúla
Most mischievous:
is mísciúla
Plural:
mísciúla
Pronunciation:
“MEESH-kyoo-il”  /ˈmʲiːʃcuːlʲ/

What does “mísciúil” mean?

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

mischievous
Fond of causing harmless trouble or playing tricks.Also: naughty, impish, roguish.
1 other meaning: harmful
2harmful
Causing damage or harm, malicious.Also: malicious, injurious.

Other Irish adjectives for mischievous: cleasach (playful)

“Mísciúil” after a noun

An Irish adjective comes after its noun. Here is mísciúil after buachaill (boy, masculine), after girseach (girl, feminine) and after a plural.

after a masculine nounbuachaill mísciúila mischievous boy
after a feminine noungirseach mhísciúila mischievous girl
after a plural nounbuachaillí mísciúlamischievous boys

séimhiú (the h) the ending

feminine
girseachgirl
+
mísciúilmischievous
=
girseach mhísciúila mischievous girl

After a feminine noun the adjective gets a séimhiú, an h after its first letter: girseach mhísciúil. After a masculine noun it stays as it is: buachaill mísciúil.

plural
buachaillíboys
+
mísciúlamischievous, plural
=
buachaillí mísciúlamischievous boys

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

More mischievous, most mischievous, very mischievous

níosmore
+
mísciúlamischievous
=
níos mísciúlamore mischievous
ismost
+
mísciúlamischievous
=
is mísciúlamost mischievous

Tá an cat níos mísciúla ná an madra. The cat is more mischievous than the dog.

more mischievousníos mísciúlain the past tense: ní ba mhísciúla
most mischievousis mísciúlain the past tense: ba mhísciúla
as mischievous aschomh mísciúil leno change after chomh
very mischievousan-mhísciúilan- lenites, except d, t and s
too mischievousrómhísciúilró- lenites

“Mísciúil” in a sentence: Irish examples

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

Is buachaill mísciúil é Seán.
Seán is a mischievous boy.
Bhí girseach mhísciúil ag gáire sa chúinne.
A mischievous little girl was laughing in the corner.
Bhí na páistí mísciúla ag imirt cleasanna orainn.
The mischievous children were playing tricks on us.
Tá an cat níos mísciúla ná an madra.
The cat is more mischievous than the dog.
Tá an coileán sin an-mhísciúil.
That puppy is very mischievous.

Other adjectives in Irish

More everyday Irish adjectives to learn next.

Mischievous in Irish: frequently asked questions

What is the Irish for mischievous?

The Irish for mischievous is mísciúil (pronounced “MEESH-kyoo-il”). It comes after the noun: buachaill mísciúil, a mischievous boy; girseach mhísciúil, a mischievous girl.

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

níos mísciúla is more mischievous and is mísciúla is most mischievous. In the past tense they become ní ba mhísciúla and ba mhísciúla.

Why does mísciúil become mhísciúil?

After a feminine singular noun an adjective is lenited: it gets an h after its first letter. So girseach mhísciúil (a mischievous girl) but buachaill mísciúil (a mischievous boy), because buachaill is masculine.

What is the plural of mísciúil?

With a plural noun mísciúil becomes mísciúla: buachaillí mísciúla, girseacha mísciúla.

How do you say very mischievous in Irish?

an-mhísciúil. Too mischievous is rómhísciúil, and as mischievous as is chomh mísciúil le.

Does mísciúil have more than one meaning?

Yes. Mísciúil can mean mischievous or harmful, depending on context; the first is the most common.

What is the difference between 'mísciúil' and 'dána'?

'Mísciúil' suggests playful mischief and tricks, while 'dána' is the everyday word for a child being bold or naughty.

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