adjective

1. without the power of sight; unable to see; sightless
2. of or for sightless persons
3. not able or willing to notice, understand, or judge
4. done without adequate directions or knowledge a blind search
5. having certain information concealed or withheld intentionally a blind ad, a blind test
6. disregarding evidence, sound logic, etc. blind love, blind faith
7. reckless; unreasonable
8. out of sight; hard to see; hidden a blind driveway
9. dense; impenetrable a blind hedge
10. closed at one end a blind duct
11. not controlled by intelligence blind destiny
12. 1. insensible
    2. Slang drunk
13. illegible; indistinct a blind letter
14. not bearing flowers or fruit: said of an imperfectly developed plant
15. guided only by flight instruments, as in a storm a blind landing
16. Archit. having no opening a blind wall
17. Bookbinding designating stamping or tooling done without ink or foil

Etymology: ME & OE: see blend

transitive verb

1. to make sightless
2. to make temporarily unable to see; dazzle
3. to deprive of the power of insight or judgment
4. to make dim; obscure
5. to outshine or eclipse
6. to hide or conceal

noun

1. anything that obscures or prevents sight
2. 1. anything that keeps out light, as a window shade or shutter
   2. Venetian blind
3. ☆ a place of concealment, as for a hunter; ambush
4. 1. a person or thing used to deceive or mislead; decoy
   2. a person who, while appearing to act out of self-interest, really acts on behalf of another

adverb

1. blindly; specif., so as to be blind, insensible, etc.
2. recklessly
3. guided only by flight instruments to fly blind
4. sight unseen to buy a thing blind