hard of hearing. Somersetsh.
·superl Insensible; unfeeling. II. Dull ·vi To become dull or stupid. III. Dull ·vt To deprive of ...
Webster's Dictionary of the English Language
·adj Stupid; doltish. ...
·adj Having a gloomy look. ...
·adj Having eyes wanting brightness, liveliness, or vivacity. ...
·adj Having poor eyesight. ...
·adj <<Stupid>>. ...
A stupid, sluggish fellow, one long going on an errand. ...
Dictionary of The Vulgar Tongue by Francis Grose
A term applied to anything tedious. ...
Dictionary of American Words And Phrases by John Russell Bartlett.