Answer: dimmest

AnswerCrossword Clue
DIMMESTLeast visible.
DIMMESTLeast bright
DIMMESTSuperlatively stupid
DIMMESTLeast hopeful
DIMMESTLeast sharp-witted
DIMMESTLeast sharp
dimmestStupid or slow to understand
dimmestDIM, obscure (indistinct)
dimmest(of an object or shape) Made difficult to see by darkness, shade, or distance
dimmest(of prospects) Not giving cause for hope or optimism
dimmest(of a light, color, or illuminated object) Not shining brightly or clearly
dimmest(of the eyes) Not able to see clearly
dimmestNot clearly recalled or formulated in the mind
dimmest(of a sound) Indistinct or muffled
dimmest(of a room or space) Made difficult to see in by darkness