Defeasible

ahd-5
  • adjective. Capable of being annulled or invalidated.
  • The Century Dictionary and Cyclopedia
  • That may be abrogated or annulled.
  • the GNU version of the Collaborative International Dictionary of English
  • adjective. Capable of being annulled or made void.
  • Wiktionary, Creative Commons Attribution/Share-Alike License
  • adjective. Capable of being defeated, terminated, annulled, voided or invalidated.
  • WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
  • adjective. capable of being annulled or voided or terminated
  • Word Usage
    "Besides being fallible, it seems that a priori justification is defeasible, that is, all-things-considered a priori justification can be defeated by further evidence."