Etymology

unsure

U1N1S1U1R1E1

Today it means: uncertain, ambivalent. Full definition →

Middle English unsure
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The story

  1. Middle English · inherited fromunsure
  2. English todayunsure

From Middle English unsure, equivalent to un- + sure. Piecewise doublet of insecure and unsecure.

Etymology from Wiktionary, CC BY-SA 4.0.