lavishness

/ˈlævɪʃnəs/
noun
  1. The quality of being very generous or spending a lot of money, often more than necessary.
    • The hotel's lavishness was evident in its marble floors and crystal chandeliers.
    • Her lavishness with gifts made her popular, but her bank account suffered.
    • The lavishness of the wedding surprised everyone, with flowers flown in from around the world.
  2. The quality of being abundant or extravagant in amount or appearance.
    • The lavishness of the autumn colors made the forest look like a painting.
    • Critics praised the lavishness of the film's costumes and set design.
    • The garden's lavishness was overwhelming, with every corner bursting with blooms.