Main Entry: ¹blind

Pronunciation: \ˈblīnd\

Function: adjective

Etymology: Middle English, from Old English; akin to Old High German blint blind, Old English blandan to mix — more at blend

Date: before 12th century

1 a (1) : sightless (2) : having less than ¹⁄₁₀ of normal vision in the more efficient eye when refractive defects are fully corrected by lenses b : of or relating to sightless persons
2 a : unable or unwilling to discern or judge <blind to a lover's faults> b : unquestioning <blind loyalty>
3 a : having no regard to rational discrimination, guidance, or restriction <blind choice> b : lacking a directing or controlling consciousness <blind chance> c : drunk 1a
4 a : made or done without sight of certain objects or knowledge of certain facts that could serve for guidance or cause bias <a blind taste test> — compare double-blind, single-blind b : having no knowledge of information that may cause bias during the course of an experiment or test <physicians blind to whether the test drug is administered>
5 : defective: as a : lacking a growing point or producing leaves instead of flowers b : lacking a complete or legible address <blind mail>
6 a : difficult to discern, make out, or discover b : hidden from sight : covered <blind seam>
7 : having but one opening or outlet <blind sockets>
8 : having no opening for light or passage : blank <blind wall>

— blind·ly \ˈblīn(d)-lē\ adverb

— blind·ness \ˈblīn(d)-nəs\ noun