What is not audible; incapable of being heard; silent. -- In*au"di*ble*ness, n. -- In*au"di*bly, adv called?

inaudible — Not audible; incapable of being heard; silent. -- In*au"di*ble*ness, n. -- In*au"di*bly, adv. (Webster's 1913.)

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