nondirectional

[ non-di-rek-shuh-nl, -dahy- ]
/ ˌnɒn dɪˈrɛk ʃə nl, -daɪ- /

adjective

functioning equally well in all directions; omnidirectional.
without direction; not directional.

Origin of nondirectional

First recorded in 1900–05; non- + directional