premature

Adjective

• uncommonly early or before the expected time
  • illness led to his premature death
    
  • alcohol brought him to an untimely end
    

• too soon or too hasty
  • our condemnation of him was a bit previous
    
  • a premature judgment
    

• born after a gestation period of less than the normal time
  • a premature infant
    

Related words

• Synonyms: 
  untimely , previous(p)