Etymology

unhappy

un·hap·py
U1N1H4A1P3P3Y4

Today it means: Not happy; sad. Full definition →

Middle English unhappy
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The story

  1. Middle English · inherited fromunhappy
  2. English todayunhappy

From Middle English unhappy; equivalent to un- + happy.

Etymology from Wiktionary, CC BY-SA 4.0.