1. untested not yet proved or subjected to testing
  2. unrested not rested or refreshed;
  3. unbelted lacking a belt
  4. unbigoted not opinionated
  5. unlisted not on a list
  6. unbolted not firmly fastened or secured
  7. untasted still full
  8. unpersuaded not converted
  9. unbiased without prejudice
  10. unabated continuing at full strength or intensity
  11. intestate having made no valid will or not disposed of by a legal will
  12. unbounded seemingly boundless in amount, number, degree, or especially extent
  13. unassisted unsupported by other people
  14. unopposed not having opposition or an opponent
  15. unbiassed without bias
  16. understood implied by or inferred from actions or statements
  17. unsuited not easy to combine harmoniously
  18. untwisted not twisted; formerly twisted but now straight
  19. unbuttoned not buttoned
  20. untoasted not having been browned by exposure to heat