Etymology

unimpressionableness

Today it means: The quality of not being impressionable. Full definition →

English unimpressionable ← French impressionnable ← Latin impressiōnem
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The story

  1. Proto-Indo-European*né
  2. Proto-Indo-European*n̥-
  3. Proto-Germanic*un-
  4. Proto-West Germanic*un-
  5. Old Englishun-
  6. Middle Englishun-
  7. Englishun-
  8. Proto-Indo-European*h₁én
  9. Proto-Italic*en
  10. Proto-Italic*en-
  11. Latinin-
  12. Proto-Indo-European*per-?
  13. Proto-Indo-European*pres-
  14. Proto-Italic*pres-
  15. Latinpremō
  16. Latinimprimō
  17. Latinimpressiōnem
  18. Frenchimpression
  19. Frenchimpressionner
  20. Frenchimpressionnable
  21. Englishimpressionable
  22. Englishunimpressionable
  23. English todayunimpressionableness

From unimpressionable + -ness.

Etymology from Wiktionary, CC BY-SA 4.0.