single-direction

adjective
UK /ˌsɪŋɡl daɪˈrekʃn/
US /ˌsɪŋɡl dəˈrekʃn/

Going only one way and not back the other way.

The single-direction road lets cars drive only toward the park.


OTHER MEANINGS

2. Moving or pointing toward just one side.

The single-direction fan blows air only at the bed.

3. A plan or effort that focuses on one goal only.

Their single-direction project aimed just at cleaning the river.

4. A signal or message that travels only one way.

The single-direction radio sends words but cannot hear any back.