unspellable
adjEtymology From un- + spellable.
1
Difficult or impossible to spell.
- His masters, the Houyhnhnms of the unspellable and unsayable name, were more than performing horses or uncultured squires.1928, Shaun Leslie, The Skull of Swift: An Extempore Exhumation:
- Their children, with unpronounceable, unspellable names, came to school in tattered clothes, the boys in drab vests and the girls in more colorful ones.1992, Hayden Carruth, Suicides and Jazzers: