dumb
adjective(dumb)
unable to speak because of hereditary deafness
dumb
adjective(dumb)
slow to learn or understand; lacking intellectual acuity
Examples:
Dumb officials make some really dumb decisions.
dumb
adjective(dumb)
temporarily incapable of speaking
Examples:
Struck dumb.
dumb
adjective(dumb)
lacking the power of human speech
Examples:
Dumb animals.