devastating

Adjective

• physically or spiritually devastating; often used in combination
  • a crushing blow
    
  • a crushing rejection
    
  • bone-crushing
    

• wreaking or capable of wreaking complete destruction
  • possessing annihilative power
    
  • a devastating hurricane
    
  • the guns opened a withering fire
    

• making light of
  • afire with annihilating invective
    
  • a devastating portrait of human folly
    
  • to compliments inflated I've a withering reply- W.S.Gilbert
    

Related words

• Synonyms: 
  crushing , annihilative , annihilating , withering