foolhardy

Adjective

• marked by defiant disregard for danger or consequences
  • foolhardy enough to try to seize the gun from the hijacker
    
  • became the fiercest and most reckless of partisans-Macaulay
    
  • a reckless driver
    
  • a rash attempt to climb Mount Everest
    

Related words

• Synonyms: 
  heady , rash , reckless