inadequate

Adjective

• not sufficient to meet a need
  • an inadequate income
    
  • a poor salary
    
  • money is short
    
  • on short rations
    
  • food is in short supply
    
  • short on experience
    

• lacking the requisite qualities or resources to meet a task
  • inadequate training
    
  • the staff was inadequate
    
  • she was unequal to the task
    

Related words

• Synonyms: 
  poor , short , unequal
• Antonyms: 
  adequate , equal