unplanned

Adjective

• not done with purpose or intent
  • an unintended slight
    
  • an unintentional pun
    
  • the offense was unintentional
    
  • an unwitting mistake may be overlooked
    

• without apparent forethought or prompting or planning
  • an unplanned economy
    
  • accepts an unplanned order
    
  • an unplanned pregnancy
    
  • unplanned remarks
    

Related words

• Synonyms: 
  unintentional , unwitting