marvellous

Adjective

• too improbable to admit of belief
  • a tall story
    

• being or having the character of a miracle

• extraordinarily good or great; used especially as intensifiers
  • a fantastic trip to the Orient
    
  • the film was fantastic!
    
  • a howling success
    
  • a marvelous collection of rare books
    
  • had a rattling conversation about politics
    
  • a tremendous achievement
    

Related words

• Synonyms: 
  improbable , marvelous , tall(a) , miraculous