HeyRua Get the app

Fallacy in Irish (Fallás): Meaning, Pronunciation, Usage

The Irish for fallacy is fallás, a masculine noun (plural falláis).
Updated October 2026Report a mistake

How to say “fallacy” in Irish

Irish:
fallás
English:
fallacy
Word type:
noun
Gender:
masculine, first declension
Pronunciation:
“fuh-LAWS”  /fˠəˈl̪ˠaːsˠ/
Various forms
Plural:
falláis (fallacies)
Genitive singular:
falláis, an fhalláis (e.g. nochtadh an fhalláis, exposing the fallacy)
Genitive plural:
fallás, na bhfallás (e.g. nochtadh na bhfallás, exposing the fallacies)

What does “fallás” mean?

fallacy
A mistaken belief or an argument that rests on faulty reasoning.Also: false argument, faulty reasoning, misconception.

“Fallás” with the article

The plural of fallacy in Irish is falláis. Here is fallás after the article (an t-alt), in the singular and the plural.

an fallás
the fallacy
No change after an
na falláis
the fallacies
Plural: no change after na

“Fallás” in a sentence: Irish examples

Common Irish sentences using fallás, the Irish word for fallacy.

Is fallás é sin, gan amhras.
That is a fallacy, without doubt.
Thaispeáin sí an fallás ina argóint.
She pointed out the fallacy in his argument.
Níor thuig sé bunús an fhalláis.
He didn't understand the basis of the fallacy.
Tá go leor falláis sa léacht sin.
There are many fallacies in that lecture.
Bhí fallás i mo réasúnaíocht féin.
There was a fallacy in my own reasoning.
Foghlaimíonn mic léinn faoi fhalláis sa loighic.
Students learn about fallacies in logic.
Tá fallás coitianta sa tuairim sin.
There is a common fallacy in that opinion.

Other nouns in Irish

More everyday Irish nouns to learn next.

Fallacy in Irish: frequently asked questions

What is the Irish for fallacy?

The Irish for fallacy is fallás (pronounced “fuh-LAWS”). It’s a masculine noun and the plural is falláis.

How do you pronounce fallás in Irish?

Fallás is said like “fuh-LAWS” (IPA /fˠəˈl̪ˠaːsˠ/).

What is the plural of fallacy in Irish?

The plural of fallás is falláis; with the article, na falláis means “the fallacies”. The genitive plural is fallás, as in nochtadh na bhfallás (exposing the fallacies).

Why does fallás change to fhallás or bhfallás?

Irish changes the start of some words after certain words. After mo (my) fallás becomes m'fhallás (lenition), and after ár (our) or i (in) it becomes ár bhfallás (eclipsis).

Is 'fallás' the same as 'earráid'?

No. 'Earráid' is any error, while 'fallás' is specifically a flaw in reasoning or a mistaken belief.

Learn Irish by
actually speaking it

Learn everyday Irish words like fallás through guided conversation with Rua.

7-day free trial. Cancel anytime.

The HeyRua app home screen