bidirectional
Bidirectional (adjective) means Able to move, operate or function in two directions, usually opposite ones. Example: “The road was widened to allow bidirectional traffic.”
How to use bidirectional
Learner’s notesIn plain EnglishBidirectional means working both ways, not just one.
It is common in technical contexts such as engineering, audio and computing, but understood generally.
Fill the gap
Can you complete this real example?
The road was widened to allow _____ traffic.
Etymology
Bidirectional is formed from the prefix bi-, meaning two, added to directional.