Definitions for unheardʌnˈhɜrd
Random House Webster's College Dictionary
not heard; not perceived by the ear.
not given a hearing or audience.
Origin of unheard:
not necessarily inaudible but not heard
Her cries for help remained unheard.
not listened to
not heard; not perceived by the ear; as, words unheard by those present
not granted an audience or a hearing; not allowed to speak; not having made a defense, or stated one's side of a question; disregarded; unheeded; as, to condem/ a man unheard
not known to fame; not illustrious or celebrated; obscure