Dumbest Synonyms and Antonyms

Unable to speak because of hereditary deafness
(Adjective)
Synonyms:
  1. mutest
Slow to learn or understand; lacking intellectual acuity; ; ; - Thackeray
(Adjective)
Synonyms:
  1. densest
  2. stupidest
  3. slowest
  4. dullest
  5. mutest
  6. dopiest
  7. dimmest
  8. thickest
Antonyms:
  1. brightest
  2. sharpest
  3. smartest
Lacking the power or faculty of speech
(Adjective)
Synonyms:
  1. mutest