Dictionary:

luxuriate

  (lŭg-zhʊr'ē-āt', lŭk-shʊr'-)

1. To take luxurious pleasure; indulge oneself.
2. To proliferate.
3. To grow profusely; thrive.

[Latin luxuriāre, luxuriāt-, to be luxuriant, from luxuria, luxury. See luxury.]

verb

To take extravagant pleasure: bask, indulge, revel, roll, rollick, wallow. See like/dislike.

Definition: indulge, prosper
Antonyms: refrain

v

Definition: indulge
Antonyms: dislike

The verb has 3 meanings:

Meaning #1: become extravagant; indulge (oneself) luxuriously
  Synonym: wanton

Meaning #2: enjoy to excess
  Synonym: indulge

Meaning #3: thrive profusely or flourish extensively