Dumb and Unvocal

Dumb adjective - Deliberately refraining from speech.

Unvocal and dumb are semantically related In some cases you can use "Unvocal" instead an adjective "Dumb".

Nearby Words: dumbness, dumbly, dumbed, dumbing

Unvocal adjective - Marked by or producing a harsh combination of sounds.

Dumb and unvocal are semantically related in unintelligible topic. Sometimes you can use "Dumb" instead an adjective "Unvocal", if it concerns topics such as unable to speak well.