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To decontaminate in Irish (díthruailligh): Meaning, Conjugation, Examples

The Irish for to decontaminate is díthruailligh; ag díthruailliú is decontaminating.
Updated October 2026Report a mistake

How to say “to decontaminate” in Irish

Irish:
díthruailligh
English:
to decontaminate
Word type:
verb, second-conjugation
Verbal noun:
díthruailliú (ag díthruailliú, decontaminating)
Verbal adjective:
díthruaillithe
Pronunciation:
“DEE-hroo-lee”  /dʲiːˌhɾˠuəlʲɪɟ/

What does “díthruailligh” mean?

to decontaminate
To remove pollution or contamination from something, such as land, water or equipment.Also: depollute, clean up, purify.

“Díthruailligh” in the different tenses

Every form follows An Caighdeán Oifigiúil.

Aimsir Chaite (Past)

PersonPositiveNegativeQuestion
mé (I)Dhíthruailligh méI decontaminatedNíor dhíthruailligh méI did not decontaminateAr dhíthruailligh mé?Did I decontaminate?
tú (you)Dhíthruailligh túYou decontaminatedNíor dhíthruailligh túYou did not decontaminateAr dhíthruailligh tú?Did you decontaminate?
sé / sí (he / she)Dhíthruailligh sé / síHe decontaminatedNíor dhíthruailligh sé / síHe did not decontaminateAr dhíthruailligh sé / sí?Did he decontaminate?
sinn (we)DhíthruaillíomarWe decontaminatedNíor dhíthruaillíomarWe did not decontaminateAr dhíthruaillíomar?Did we decontaminate?
sibh (you, plural)Dhíthruailligh sibhYou decontaminatedNíor dhíthruailligh sibhYou did not decontaminateAr dhíthruailligh sibh?Did you decontaminate?
siad (they)Dhíthruailligh siadThey decontaminatedNíor dhíthruailligh siadThey did not decontaminateAr dhíthruailligh siad?Did they decontaminate?
saorbhriathar (autonomous)DíthruaillíodhNíor díthruaillíodhAr díthruaillíodh?

Aimsir Láithreach (Present)

PersonPositiveNegativeQuestion
mé (I)DíthruaillímI decontaminateNí dhíthruaillímI do not decontaminateAn ndíthruaillím?Do I decontaminate?
tú (you)Díthruaillíonn túYou decontaminateNí dhíthruaillíonn túYou do not decontaminateAn ndíthruaillíonn tú?Do you decontaminate?
sé / sí (he / she)Díthruaillíonn sé / síHe decontaminatesNí dhíthruaillíonn sé / síHe does not decontaminateAn ndíthruaillíonn sé / sí?Does he decontaminate?
sinn (we)DíthruaillímidWe decontaminateNí dhíthruaillímidWe do not decontaminateAn ndíthruaillímid?Do we decontaminate?
sibh (you, plural)Díthruaillíonn sibhYou decontaminateNí dhíthruaillíonn sibhYou do not decontaminateAn ndíthruaillíonn sibh?Do you decontaminate?
siad (they)Díthruaillíonn siadThey decontaminateNí dhíthruaillíonn siadThey do not decontaminateAn ndíthruaillíonn siad?Do they decontaminate?
saorbhriathar (autonomous)DíthruaillítearNí dhíthruaillítearAn ndíthruaillítear?

Aimsir Fháistineach (Future)

PersonPositiveNegativeQuestion
mé (I)Díthruailleoidh méI will decontaminateNí dhíthruailleoidh méI will not decontaminateAn ndíthruailleoidh mé?Will I decontaminate?
tú (you)Díthruailleoidh túYou will decontaminateNí dhíthruailleoidh túYou will not decontaminateAn ndíthruailleoidh tú?Will you decontaminate?
sé / sí (he / she)Díthruailleoidh sé / síHe will decontaminateNí dhíthruailleoidh sé / síHe will not decontaminateAn ndíthruailleoidh sé / sí?Will he decontaminate?
sinn (we)DíthruailleoimidWe will decontaminateNí dhíthruailleoimidWe will not decontaminateAn ndíthruailleoimid?Will we decontaminate?
sibh (you, plural)Díthruailleoidh sibhYou will decontaminateNí dhíthruailleoidh sibhYou will not decontaminateAn ndíthruailleoidh sibh?Will you decontaminate?
siad (they)Díthruailleoidh siadThey will decontaminateNí dhíthruailleoidh siadThey will not decontaminateAn ndíthruailleoidh siad?Will they decontaminate?
saorbhriathar (autonomous)DíthruailleofarNí dhíthruailleofarAn ndíthruailleofar?

Modh Coinníollach (Conditional)

PersonPositiveNegativeQuestion
mé (I)DhíthruailleoinnI would decontaminateNí dhíthruailleoinnI would not decontaminateAn ndíthruailleoinn?Would I decontaminate?
tú (you)DhíthruailleofáYou would decontaminateNí dhíthruailleofáYou would not decontaminateAn ndíthruailleofá?Would you decontaminate?
sé / sí (he / she)Dhíthruailleodh sé / síHe would decontaminateNí dhíthruailleodh sé / síHe would not decontaminateAn ndíthruailleodh sé / sí?Would he decontaminate?
sinn (we)DhíthruailleoimisWe would decontaminateNí dhíthruailleoimisWe would not decontaminateAn ndíthruailleoimis?Would we decontaminate?
sibh (you, plural)Dhíthruailleodh sibhYou would decontaminateNí dhíthruailleodh sibhYou would not decontaminateAn ndíthruailleodh sibh?Would you decontaminate?
siad (they)DhíthruailleoidísThey would decontaminateNí dhíthruailleoidísThey would not decontaminateAn ndíthruailleoidís?Would they decontaminate?
saorbhriathar (autonomous)DhíthruailleofaíNí dhíthruailleofaíAn ndíthruailleofaí?

“Díthruailligh” in a sentence: Irish examples

Past, present, future and conditional, with a negative and a question.

Dhíthruailligh siad an talamh tar éis na tubaiste.
They decontaminated the land after the disaster.
Díthruaillíonn an fhoireann an trealamh gach lá.
The team decontaminates the equipment every day.
Díthruailleoidh an chomhairle an abhainn an bhliain seo chugainn.
The council will decontaminate the river next year.
Dhíthruailleodh sé an láthair dá mbeadh airgead aige.
He would decontaminate the site if he had money.
Níor díthruaillíodh an t-uisce fós.
The water hasn't been decontaminated yet.
Ar dhíthruailligh sibh an seomra?
Did you decontaminate the room?

Other verbs in Irish

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To decontaminate in Irish: frequently asked questions

What is the Irish for to decontaminate?

The Irish for to decontaminate is díthruailligh (pronounced “DEE-hroo-lee”). It is a second-conjugation verb; the verbal noun is díthruailliú.

What is the verbal noun of díthruailligh?

The verbal noun of díthruailligh is díthruailliú, used after ag for the continuous: ag díthruailliú (decontaminating). The verbal adjective is díthruaillithe.

How do you say díthruailligh in the past and the future?

Past: Dhíthruailligh mé; negative Níor dhíthruailligh mé; question Ar dhíthruailligh mé?. Future: Díthruailleoidh mé; negative Ní dhíthruailleoidh mé; question An ndíthruailleoidh mé?.

What is the modh coinníollach of díthruailligh?

The conditional (modh coinníollach) first person is Dhíthruailleoinn (I would decontaminate); negative Ní dhíthruailleoinn; question An ndíthruailleoinn?.

How is 'díthruailligh' related to 'truailligh'?

'Truailligh' means to pollute or contaminate, and the prefix 'dí-' reverses it, so 'díthruailligh' means to decontaminate.

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