extravagantly

/ɪkˈstrævəɡəntli/
adverb
  1. In a way that involves spending a lot of money, more than is necessary or reasonable.
    • The billionaire lived extravagantly, buying private jets and islands on a whim.
    • He tipped the waiter extravagantly, leaving a hundred dollars on a thirty-dollar meal.
    • She dressed extravagantly for the gala, wearing a gown covered in real diamonds.
  2. In an exaggerated or overly elaborate manner; without restraint.
    • The movie's special effects were extravagantly overdone, making the action scenes look cartoonish.
    • The politician extravagantly promised to end poverty within a year.
    • She extravagantly praised her friend's cooking, even though the soup was burnt.