Textual thesaurus for "dumb"

(adj) mute, silent

unable to speak because of hereditary deafness

(adj) speechless

temporarily incapable of speaking

struck dumb; speechless with shock

(adj) dim, dense, dull, obtuse, slow

slow to learn or understand; lacking intellectual acuity

so dense he never understands anything I say to him; never met anyone quite so dim; although dull at classical learning, at mathematics he was uncommonly quick- Thackeray; dumb officials make some really dumb decisions; he was either normally stupid or being deliberately obtuse; worked with the slow students