Simply plug your letters into the Search and Get definitions for English words.
Adjective : DUMB
) 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" ;
) lacking the power of human speech; "dumb animals" ;
See more about : DUMB