1. Occurring without motivation or provocation
   "unprovoked and dastardly attack"
   - motiveless, wanton

See also: unmotivated

• cow chip
• medical aid
• medical assistant
• medical bill
• medical building
• medical care
• medical center
• medical centre
• medical checkup
• medical community
• medical diagnosis
• medical dressing
• medical evacuation
• medical exam
• medical examination
• medical examiner
• medical expense
• medical extern
• medical history
• medical institution
• medical instrument
• medical intern
• Medical Literature Analysis and Retrieval System
• medical man
• medical officer