1. The execution of a program that preempts the use of the processing system
   - foregrounding

Type of: priority processing

• unimpressed
• unimpressionable
• unimpressive
• unimpressively
• unimprisoned
• unimproved
• unincorporated
• unindustrialised
• unindustrialized
• uninebriated
• uninfected
• uninflected
• uninfluenced
• uninfluential
• uninformative
• uninformatively
• uninformed
• uninhabitable
• uninhabited
• uninhibited
• uninitiate
• uninitiated
• uninjectable
• uninjured
• uninominal