1. the property of a microphone or antenna of being more sensitive in one direction than in another (Freq. 1) - the antenna received signals with no directivity • Syn: directionality • Derivationally related forms: directional (for: directionality) • Hypernyms: radial asymmetry 2. the quality of being directive • Syn: directiveness • Derivationally related forms: directive (for: directiveness), directive • Hypernyms: quality