| Word | Definitions | Synonyms |
|---|---|---|
| dumb | (adjective) slow to learn or understand; lacking intellectual acuity | Synonyms: dense, dim, dull, obtuse, slow |
| (adjective) unable to speak because of hereditary deafness | Synonyms: mute, silent | |
| (adjective) temporarily incapable of speaking | Synonyms: speechless | |
| (adjective) lacking the power of human speech | - |