guiltless

adjective3

1. •
   Free from guilt; innocent.
2. •
   Without experience or trial; unacquainted (with).
3. •
   (humorous) Not encumbered with; free from.

   • Their spears, wommeras, and boomerangs are guiltless of ornamentation, and save in a very few instances no idea of art seems to belong to the race. — 1887