a piece of cloth tied round the head to cover someone’s eyes.
verb
[with object]
deprive (someone) of sight by tying a blindfold round their head:he was blindfolded and trussed up in a cupboard
adverb & adjective
British
with a blindfold covering the eyes: [as adverb]:the reporter was driven blindfold to meet the gangster
(of a game of chess) conducted without sight of board and pieces.
[as adverb] used to convey that something is done with great ease and confidence:he missed putts that he would normally hole blindfold
Origin:
mid 16th century: alteration, by association with fold1, of blindfeld, past participle of obsolete blindfell 'strike blind, blindfold', from Old Englishgeblindfellan(see blind, fell2)
blindfold in other Oxford dictionaries
Definition of blindfold in the US English dictionary