dull

1. superl. Slow of understanding; wanting readiness of apprehension; stupid; doltish; blockish. Source: opted

2. superl. Slow in action; sluggish; unready; awkward. Source: opted

3. superl. Insensible; unfeeling. Source: opted

4. superl. Not keen in edge or point; lacking sharpness; blunt. Source: opted

5. superl. Not bright or clear to the eye; wanting in liveliness of color or luster; not vivid; obscure; dim; as, a dull fire or lamp; a dull red or yellow; a dull mirror. Source: opted

6. superl. Heavy; gross; cloggy; insensible; spiritless; lifeless; inert. Source: opted

7. superl. Furnishing little delight, spirit, or variety; uninteresting; tedious; cheerless; gloomy; melancholy; depressing; as, a dull story or sermon; a dull occupation or period; hence, cloudy; overcast; as, a dull day. Source: opted

8. v. t. To deprive of sharpness of edge or point. Source: opted

9. v. t. To make dull, stupid, or sluggish; to stupefy, as the senses, the feelings, the perceptions, and the like. Source: opted

10. v. t. To render dim or obscure; to sully; to tarnish. Source: opted

11. v. t. To deprive of liveliness or activity; to render heavy; to make inert; to depress; to weary; to sadden. Source: opted

12. v. i. To become dull or stupid. Source: opted

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