• having little or no usable vision; having a severe visual impairment or permanent sight loss, on account of a congenital condition or because of ageing, injury, or a medical condition later in life

Synonyms: visually impaired, having a visual impairment, having sight loss, vision-impaired, unsighted, sightless, visionless, unseeing

• (of an action, especially a test or experiment) done without being able to see or without having relevant information

• lacking perception, awareness, or judgement

Synonyms: imperceptive, unperceptive, unaware, uncomprehending, unimaginative, insensitive, unmindful of, mindless of, careless of, heedless of, oblivious to, insensible to, unconcerned about/by, inattentive to, indifferent to, uncritical, unreasoned, unthinking, unconsidered, mindless, injudicious, undiscerning, indiscriminate

• (of a corner or bend in a road) impossible to see round

• not the slightest (used in emphatic expressions)

• (of a plant) without buds, eyes, or terminal flowers

• cause (someone) to lose sight, either permanently or temporarily; make unable to see

Synonyms: make blind, deprive of sight, deprive of vision, render unsighted, render sightless, put someone's eyes out, gouge someone's eyes out, stop someone seeing, obscure someone's vision, block someone's vision, get in someone's line of vision, dazzle

• deprive (someone) of understanding, judgement, or perception

Synonyms: deprive of understanding, deprive of perception, deprive of judgement, deprive of reason, deprive of sense

• move very fast and dangerously

• a screen for a window, especially one on a roller or made of slats

Synonyms: screen, shade, louvre, awning, canopy, sunshade, curtain, shutter, cover, covering, protection

• something designed to conceal one's real intentions

Synonyms: deception, camouflage, screen, smokescreen, front, facade, cover, disguise, cloak, pretext, masquerade, mask, feint

• a heavy drinking bout

Synonyms: drinking bout, debauch

• without being able to see clearly