dull

dull [-er, -est] adj

ME dul, foolish.

1. Not fully felt; numb; deaden.
2. Boring; weary; tedious.
3. Slow; lesser intelligence; slower mental faculties.
4. Dim; not translucent; not bright.
5. Hearing impaired; slightly deaf; (see Matthew 13:15).
6. Not sharp.
7. Dispirited; melancholy; depressed; sad; unhappy.