Second-person singular simple present form of blind(verb)
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Use "blindest" in a sentence
"Attending a concert full of hundreds of screaming girls, the Beckhams probably hoped that no one would pay them the blindest bit of attention."
"England's serial failure to practise penalties probably doesn't make the blindest bit of difference to their serial failure to be able to take them in tournaments."
"It won't make the blindest bit of difference in the long term, but it might get people fired up for a bit, which buys you time to think of something else."