Difference between Inaudible and Unheard

INAUDIBLE vs UNHEARD: ADJECTIVE

Not listened to
Unknown to fame; obscure.
Not known to fame; not illustrious or celebrated; obscure.
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.
Not given a hearing; not listened to.
Not heard.
Not necessarily inaudible but not heard

Not known to fame; not celebrated.
Not admitted to audience or given a hearing; not permitted to speak for one's self.
Not heard; not perceived by the ear.

Perplexing, Impenetrable, Understandable, Incomprehensible, Audible, Unintelligible, Unhearable, Unsounded, Breathed, Supersonic, Ultrasonic, Unheard, Voiceless, Infrasonic, Silent

Shocking, Outrageous, Extraordinary, Incredible, Impossible, Nonexistent, Unnoticed, Unprecedented, Unbelievable, Rare, Inconceivable, Unusual, Uncommon, Unhearable, Inaudible

Perplexing, Impenetrable, Understandable, Incomprehensible, Audible, Unintelligible, Unsounded, Unhearable, Breathed, Supersonic, Ultrasonic, Unheard, Voiceless, Infrasonic, Silent

Shocking, Outrageous, Extraordinary, Incredible, Impossible, Nonexistent, Unnoticed, Unprecedented, Unbelievable, Rare, Inconceivable, Unusual, Uncommon, Unhearable, Inaudible

Some things just cannot be unseen or unheard.
And shootings, she said, were practically unheard of.
Instead, here I was sending it away, unheard.
It was virtually unheard of a generation ago.
Unheard Of Ways To Achieve Greater Marco Bitran.
This is far from unheard territory among dermatologists.
The call was hopefully expected but disappointedly unheard.
To a place where impossibilities are unheard of!
Now before today, this was completely unheard of.
Todaythey can expect standards of medical care unheard of here even a fewyears ago, and still unheard of in most other countries.