1. Incapable of being mitigated
   "stern and unmitigable accusations"

See also: implacable

• tracing routine
• track
• track and field
• track down
• track event
• track meet
• track record
• track star
• track-to-track seek time
• trackable
• trackage
• trackback
• trackball
• tracked
• tracked vehicle
• tracker
• tracking
• tracklayer
• trackless
• trackless trolley
• tracksuit
• tract
• tract house
• tract housing
• tractability