marvellous

The adjective has 3 meanings:

Meaning #1: extraordinarily good; used especially as intensifiers
  Synonyms: fantastic, howling, marvelous, rattling, terrific, tremendous, wonderful, wondrous

Meaning #2: being or having the character of a miracle
  Synonyms: marvelous, miraculous

Meaning #3: too improbable to admit of belief
  Synonyms: improbable, marvelous, tall