HeyRua Get the app

Hard in Irish (dian): Meaning, Forms, Examples

Other uses of ‘dian’: strict · vehement

The Irish for hard is dian: múinteoir dian, a hard teacher.
Updated October 2026Report a mistake

How to say “hard” in Irish

Irish:
dian
English:
hard, strict, vehement
Word type:
adjective
Harder:
níos déine
Hardest:
is déine
Plural:
diana
Pronunciation:
“dee-un”  /dʲiənˠ/

What does “dian” mean?

“Dian” has three alternative meanings. The most common comes first.

hard
Needing a lot of effort or energy; done with great intensity.Also: intense, intensive, strenuous, arduous.
2 other meanings: strict or vehement
2strict
Severe or demanding in the way someone treats other people.Also: severe, harsh, stern.
3vehement
Fierce, violent or extreme in force.Also: violent, fierce, extreme.

Other Irish adjectives for hard: deacair (difficult), crua (hard), doiligh (difficult), deacrach (difficult)

“Dian” after a noun

An Irish adjective comes after its noun. Here is dian after múinteoir (teacher, masculine), after girseach (girl, feminine) and after a plural.

after a masculine nounmúinteoir diana hard teacher
after a feminine noungirseach dhiana hard girl
after a plural nounmúinteoirí dianahard teachers

séimhiú (the h) the ending

feminine
girseachgirl
+
dianhard
=
girseach dhiana hard girl

After a feminine noun the adjective gets a séimhiú, an h after its first letter: girseach dhian. After a masculine noun it stays as it is: múinteoir dian.

plural
múinteoiríteachers
+
dianahard, plural
=
múinteoirí dianahard teachers

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

Harder, hardest, very hard

níosmore
+
déinehard
=
níos déineharder
ismost
+
déinehard
=
is déinehardest

Tá an obair seo níos déine ná an obair eile. This work is harder than the other work.

harderníos déinein the past tense: ní ba dhéine
hardestis déinein the past tense: ba dhéine
as hard aschomh dian leno change after chomh
very hardan-dianan- lenites, except d, t and s
too hardródhianró- lenites

“Dian” in a sentence: Irish examples

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

Is múinteoir dian é an príomhoide.
The principal is a strict teacher.
Bhí traenáil dhian againn aréir.
We had hard training last night.
Bhí na scrúduithe diana i mbliana.
The exams were tough this year.
Tá an obair seo níos déine ná an obair eile.
This work is harder than the other work.
Tá sé ag obair go dian.
He is working hard.

Other adjectives in Irish

More everyday Irish adjectives to learn next.

Hard in Irish: frequently asked questions

What is the Irish for hard?

The Irish for hard is dian (pronounced “dee-un”). It comes after the noun: múinteoir dian, a hard teacher; girseach dhian, a hard girl.

How do you say harder and hardest in Irish?

níos déine is harder and is déine is hardest. In the past tense they become ní ba dhéine and ba dhéine.

Why does dian become dhian?

After a feminine singular noun an adjective is lenited: it gets an h after its first letter. So girseach dhian (a hard girl) but múinteoir dian (a hard teacher), because múinteoir is masculine.

What is the plural of dian?

With a plural noun dian becomes diana: múinteoirí diana, girseacha diana.

How do you say very hard in Irish?

an-dian. Too hard is ródhian, and as hard as is chomh dian le.

Does dian have more than one meaning?

Yes. Dian can mean hard, strict or vehement, depending on context; the first is the most common.

How do I say someone is strict with somebody?

Use dian ar: Tá sé dian ar na páistí, he is strict with the children.

What is the difference between dian and crua?

Both can mean hard, but dian stresses intensity or strictness, as in obair dhian, while crua also means physically hard, as in cloch chrua.

Learn Irish by
actually speaking it

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

7-day free trial. Cancel anytime.

The HeyRua app home screen