dumb

definition: unable to speak because of hereditary deafness

example:

speech part: adjective

synonyms: mute silent

definition: lacking the power of human speech

example: dumb animals

speech part: adjective

synonyms:

definition: temporarily incapable of speaking

example: struck dumb

speech part: adjective

synonyms: speechless

definition: slow to learn or understand

example:

speech part: adjective

synonyms: slow

dumb is explained and pronounced