fantastically
adverb /fænˈtæstɪkli/
  /fænˈtæstɪkli/
- (informal) extremely well synonym brilliantly (2)
- You did fantastically.
 
 - (informal) to an extremely large degree synonym enormously, incredibly
- fantastically successful
 
 - very strangely synonym weirdly
- a fantastically shaped piece of stone