Etymology

impossible

im·pos·si·ble
I1M3P3O1S1S1I1B3L1E1

Today it means: Not possible; not able to be done or happen. Full definition →

Middle English impossible
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The story

  1. Middle English · inherited fromimpossible
  2. English todayimpossible

From Middle English impossible, equivalent to im- + possible.

Etymology from Wiktionary, CC BY-SA 4.0.