Dark. literal and figurative.

Dark (literal and figurative); = thester, adj.

Of persons, their faculties, etc.; also transferred of things: Lacking in mental perception, discernment, or foresight; destitute of intellectual…

figurative. With the mind blinded; without perception; without forethought, heedless, reckless. Cf. blind, adj. 3.

attributive or adj., usually figurative.

figurative. Having imperfect perception or discernment; lacking in or incapable of understanding or foresight; dim-witted; stupid.

figurative. Having the understanding darkened; deluded; deceived, benighted, foolish.

figurative. Having the mental vision dimmed; dull of perception, short-sighted.

Blinded, blind; uncomprehending; lacking spiritual vision.

Not spiritually or mentally enlightened.

Combining with adjectives and past participles to form adjectives with the sense ‘foolishly ——’, as fond-conceited, fond-hardy, etc. Obsolete.

having the mental faculties dimmed.

figurative. Lacking in foresight or in extent of intellectual outlook.

= obcaecate, adj.

figurative. Of the nature of or pertaining to imperfect mental light.

= blindfold, adj.

Characterized by or proceeding from want of foresight or limited mental vision.

Not (readily) adaptable to different purposes, changing circumstances, etc.; not showing adaptability or versatility. Cf. unpliant, adj. 3.

Of a person: clouded or impaired in intellectual acuity. Obsolete.

= myopic, adj.

Having no vision of unseen things; devoid of higher insight or inspiration.

Of, relating to, or affected with myopia; short-sighted, near-sighted.

Of a horse: provided with blinkers. Also figurative, having a limited range of outlook.