| ADJECTIVE | all | unhearable, inaudible | impossible to hear |
|---|
| Meaning | impossible to hear; imperceptible by the ear. | |
|---|---|---|
| Synonym | inaudible | |
| Attribute of | audibility, audibleness | Quality or fact or degree of being audible or perceptible by the ear |
| Narrower | breathed, voiceless | Uttered without voice |
| infrasonic | Having frequencies below those of audible sound | |
| silent | Having a frequency below or above the range of human audibility | |
| silent, unsounded | not made to sound | |
| supersonic, ultrasonic | Having frequencies above those of audible sound | |
| unheard | not necessarily inaudible but not heard | |
| See also | imperceptible, unperceivable | impossible or difficult to perceive by the mind or senses |
| quiet | Free of noise or uproar | |
| Opposite | audible, hearable | heard or perceptible by the ear |
| Spanish | inaudible | |
| Catalan | inaudible | |
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