noncharacteristic

The story

1. Proto-Indo-European*né
2. Proto-Germanic*ne
3. Proto-Indo-European*ís?
4. Proto-Indo-European*h₁óynos
5. Proto-Germanic*ainaz
6. Proto-Germanic*nainaz
7. Proto-West Germanic*nain
8. Old Englishnān
9. Middle Englishnon
10. Old Englishnān
11. Old Englishnān-
12. Middle Englishnon-
13. Englishnon-
14. Ancient Greekχαράσσω (kharássō)
15. Ancient Greekχαρακτήρ (kharaktḗr)
16. Ancient Greekχαρακτηρίζω (kharaktērízō)
17. Ancient Greekχᾰρᾰκτηριστῐκός (khărăktēristĭkós)
18. Englishcharacteristic
19. English todaynoncharacteristic

From non- + characteristic.