1. The state or quality of being irrevocable
   - irrevocability

Derived forms: irrevocablenesses

• untrusty
• untruth
• untruthful
• untruthfully
• untruthfulness
• untucked
• untufted
• untune
• untuneful
• unturned
• untutored
• untwine
• untwist
• untwisted
• untying
• untypical
• untypicality
• untypically
• ununbium
• ununderstandably
• ununderstood
• ununhexium
• ununpentium
• ununquadium
• ununtrium