Heavy; lifeless; inert.
Not bright or intelligent; stupid; having slow understanding.
Insensible; unfeeling.
Not intense; felt indistinctly or only slightly.
Sluggish, listless.
Boring; not exciting or interesting.
Not shiny; having a matte finish or no particular luster or brightness.
Lacking the ability to cut easily; not sharp.
Cloudy, overcast.
Not clear, muffled.
To render dull; to remove or blunt an edge or something that was sharp.
To soften, moderate or blunt; to make dull, stupid, or sluggish; to stupefy.
To lose a sharp edge; to become dull.
To render dim or obscure; to sully; to tarnish.
very thin, as thin as a hair
A fishing line made from hair.
The line along one's forehead where hair starts growing.
A very thin line in writing, drawing, or typography.
A very thin fissure.