adj, verb ·Rare ·Advanced level

Definitions

Verb

1. 1
   To free from blindness. figuratively, sometimes
2. 2
   To remove the secrecy from (a bid).
3. 3
   To convert (a blind signature) back to the unblinded state (as opposed to the blinded state). transitive
4. 4
   To cause (experimenters) to learn information which, for the purposes of avoiding bias, was previously unknown to them, or should be unknown to them, such as the knowledge of which patients received a drug and which a placebo.

Adjective

1. 1
   Not blind.

Etymology

From un- + blind.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.