Antonyms of adj unheard

1 sense of unheard

Sense 1
unheard -- (not necessarily inaudible but not heard)

INDIRECT (VIA inaudible) -> audible, hearable -- (heard or perceptible by the ear; "he spoke in an audible whisper")

Similarity of adj unheard

1 sense of unheard

Sense 1
unheard -- (not necessarily inaudible but not heard)
       => inaudible (vs. audible), unhearable -- (impossible to hear; imperceptible by the ear; "an inaudible conversation")