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Impossible in Irish (neamhfhéideartha): Meaning, Forms, Examples

The Irish for impossible is neamhfhéideartha: plean neamhfhéideartha, an impossible plan.
Updated October 2026Report a mistake

How to say “impossible” in Irish

Irish:
neamhfhéideartha
English:
impossible
Word type:
adjective
More impossible:
níos neamhfhéideartha
Most impossible:
is neamhfhéideartha
Pronunciation:
“nyow-AY-dur-ha”  /ɲaʊˈeːdʲəɾˠhə/

What does “neamhfhéideartha” mean?

impossible
Describes something that cannot happen or cannot be done.Also: not possible, unfeasible, unachievable.

Other Irish adjectives for impossible: dodhéanta (impossible)

“Neamhfhéideartha” after a noun

An Irish adjective comes after its noun. Here is neamhfhéideartha after plean (plan, masculine), after scéim (scheme, feminine) and after a plural.

after a masculine nounplean neamhfhéidearthaan impossible plan
after a feminine nounscéim neamhfhéidearthaan impossible scheme
after a plural nounpleananna neamhfhéidearthaimpossible plans
plural
pleanannaplans
+
neamhfhéidearthaimpossible, plural
=
pleananna neamhfhéidearthaimpossible plans

With a plural noun the adjective takes its plural form, neamhfhéideartha.

More impossible, most impossible, very impossible

níosmore
+
neamhfhéidearthaimpossible
=
níos neamhfhéidearthamore impossible
ismost
+
neamhfhéidearthaimpossible
=
is neamhfhéidearthamost impossible

Tá an tasc seo níos neamhfhéideartha ná an ceann eile. This task is more impossible than the other one.

more impossibleníos neamhfhéidearthain the past tense: ní ba neamhfhéideartha
most impossibleis neamhfhéidearthain the past tense: ba neamhfhéideartha
as impossible aschomh neamhfhéideartha leno change after chomh
very impossiblean-neamhfhéidearthaan- lenites, except d, t and s
too impossibleróneamhfhéideartharó- lenites

“Neamhfhéideartha” in a sentence: Irish examples

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

Is plean neamhfhéideartha é sin.
That is an impossible plan.
Thug sé aidhm neamhfhéideartha dúinn.
He gave us an impossible aim.
Bhí na spriocanna neamhfhéideartha ón tús.
The targets were impossible from the start.
Tá an tasc seo níos neamhfhéideartha ná an ceann eile.
This task is more impossible than the other one.
Tá sé neamhfhéideartha an obair a chríochnú inniu.
It is impossible to finish the work today.

Other adjectives in Irish

More everyday Irish adjectives to learn next.

Impossible in Irish: frequently asked questions

What is the Irish for impossible?

The Irish for impossible is neamhfhéideartha (pronounced “nyow-AY-dur-ha”). It comes after the noun: plean neamhfhéideartha, an impossible plan; scéim neamhfhéideartha, an impossible scheme.

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

níos neamhfhéideartha is more impossible and is neamhfhéideartha is most impossible. In the past tense they become ní ba neamhfhéideartha and ba neamhfhéideartha.

How do you say very impossible in Irish?

an-neamhfhéideartha. Too impossible is róneamhfhéideartha, and as impossible as is chomh neamhfhéideartha le.

What is the difference between 'neamhfhéideartha' and 'dodhéanta'?

Both can mean impossible, but 'dodhéanta' is the everyday word, as in 'Tá sé dodhéanta', while 'neamhfhéideartha' is more formal and means not possible as a possibility.

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