bidirectional

UK: /ˌbaɪdɪˈrɛkʃən^əl/

US: /ˌbaɪdɪˈrɛkʃənəl, -daɪ-/

US: (bī′di rek′shə nl, -dī-)

WordReference Random House Learner's Dictionary of American English © 2026

bi•di•rec•tion•al /ˌbaɪdɪˈrɛkʃənəl, -daɪ-/   adj. 

1. capable of reacting or functioning in two directions:
   a bidirectional antenna.

bi•di•rec•tion•al•i•ty /ˌbaɪdɪˌrɛkʃəˈnælɪti, -daɪ-/  n. [uncountable]
bi•di•rec•tion•al•ly, adv. 

WordReference Random House Unabridged Dictionary of American English © 2026

bi•di•rec•tion•al  (bī′di rek′shə nl, -dī-), adj. 

1. capable of reacting or functioning in two, usually opposite, directions.

• bi-¹ + directional 1940–45

bi′di•rec′tion•al′i•ty, n. 
bi′di•rec′tion•al•ly, adv.