Sane; clear-thinking. / Decent; morally upright.

(idiomatic) Excessively boring, tedious, or dull; repetitive; of an activity, etc., lacking any interest or variety that might serve as intellectual stimulation.

Alternative spelling of narrow-minded

Lacking subtlety or sophistication. / Lacking mental capacity; feeble-minded.

(transitive, idiomatic) To consider, to contemplate, to intend.

(Scientology) A portion of the brain akin to the subconscious where painful memories, or engrams, are stored.

Alternative form of mindfuck

Something very puzzling, confusing or surprising.

Alternative spelling of mind-boggler

plural of state of mind