dim
Not bright or colorful.
(colloquial) Not smart or intelligent.
Indistinct, hazy or unclear.
Disapproving, unfavorable: {{non-gloss|rarely used outside the phrase (take a dim view of).}}
(archaic) Dimness.
To make something less bright.
To become darker.
To render dim, obscure, or dark; to make less bright or distinct.
To deprive of distinct vision; to hinder from seeing clearly, either by dazzling or clouding the eyes; to darken the senses or understanding of.
(diminish, dull, or curtail, figuratively) (figurative) To diminish, dull, or curtail.
(diminished) (music) (diminished)