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One-way in Irish (aontreoch): Meaning, Forms, Examples

Other uses of ‘aontreoch’: unidirectional

The Irish for one-way is aontreoch: bóthar aontreoch, a one-way road.
Updated October 2026Report a mistake

How to say “one-way” in Irish

Irish:
aontreoch
English:
one-way, unidirectional
Word type:
adjective
More one-way:
níos aontreoiche
Most one-way:
is aontreoiche
Plural:
aontreocha
Pronunciation:
“AYN-trokh”  /ˈeːnˌtʲɾʲɔx/

What does “aontreoch” mean?

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

one-way
Moving or allowed to move in one direction only, as of traffic on a street.Also: unidirectional, single-direction.
1 other meaning: unidirectional
2unidirectional
Working or flowing in one direction only, as of a signal, current or valve.Also: one-directional, one-way.

“Aontreoch” after a noun

An Irish adjective comes after its noun. Here is aontreoch after bóthar (road, masculine), after sráid (street, feminine) and after a plural.

after a masculine nounbóthar aontreocha one-way road
after a feminine nounsráid aontreocha one-way street
after a plural nounbóithre aontreochaone-way roads

séimhiú (the h) the ending

plural
bóithreroads
+
aontreochaone-way, plural
=
bóithre aontreochaone-way roads

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

More one-way, most one-way, very one-way

níosmore
+
aontreoicheone-way
=
níos aontreoichemore one-way
ismost
+
aontreoicheone-way
=
is aontreoichemost one-way

Tá an córas nua níos aontreoiche ná an seancheann. The new system is more one-directional than the old one.

more one-wayníos aontreoichein the past tense: ní b'aontreoiche
most one-wayis aontreoichein the past tense: ab aontreoiche
as one-way aschomh haontreoch lechomh puts an h before a vowel
very one-wayan-aontreochan- lenites, except d, t and s
too one-wayró-aontreochró- lenites

“Aontreoch” in a sentence: Irish examples

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

Tá bóthar aontreoch os comhair na scoile.
There is a one-way road in front of the school.
Chas sé isteach i sráid aontreoch.
He turned into a one-way street.
Tá a lán sráideanna aontreocha sa chathair.
There are a lot of one-way streets in the city.
Tá an córas nua níos aontreoiche ná an seancheann.
The new system is more one-directional than the old one.
Tá an tsráid seo aontreoch anois.
This street is one-way now.

Other adjectives in Irish

More everyday Irish adjectives to learn next.

One-way in Irish: frequently asked questions

What is the Irish for one-way?

The Irish for one-way is aontreoch (pronounced “AYN-trokh”). It comes after the noun: bóthar aontreoch, a one-way road; sráid aontreoch, a one-way street.

How do you say more one-way and most one-way in Irish?

níos aontreoiche is more one-way and is aontreoiche is most one-way. In the past tense they become ní b'aontreoiche and ab aontreoiche.

What is the plural of aontreoch?

With a plural noun aontreoch becomes aontreocha: bóithre aontreocha, sráideanna aontreocha.

How do you say very one-way in Irish?

an-aontreoch. Too one-way is ró-aontreoch, and as one-way as is chomh haontreoch le.

Does aontreoch have more than one meaning?

Yes. Aontreoch can mean one-way or unidirectional, depending on context; the first is the most common.

What is the opposite of 'aontreoch'?

Use 'déthreoch' for two-way, as in 'trácht déthreoch', two-way traffic.

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