1. 
[syn: booming, flourishing, palmy, prospering, prosperous, roaring, thriving]
The Collaborative International Dictionary of English v.0.48:
Palmy \Palm"y\, a.
   1. Bearing palms; abounding in palms; derived from palms; as,
      a palmy shore. --Pope.
      [1913 Webster]
            His golden sands and palmy wine.      --Goldsmith.
      [1913 Webster]
   2. Worthy of the palm; flourishing; prosperous.
      [1913 Webster]
            In the most high and palmy state of Rome. --Shak.
      [1913 Webster]
WordNet (r) 3.0 (2006):
palmy
    adj 1: very lively and profitable; "flourishing businesses"; "a
           palmy time for stockbrokers"; "a prosperous new
           business"; "doing a roaring trade"; "a thriving tourist
           center"; "did a thriving business in orchids" [syn:
           booming, flourishing, palmy, prospering,
           prosperous, roaring, thriving]
Moby Thesaurus II by Grady Ward, 1.0:
21 Moby Thesaurus words for "palmy":
   balmy, blooming, blossoming, booming, clear, exuberant, fair, fat,
   flourishing, flowering, fruiting, going strong, halcyon,
   in full swing, in good case, piping, prospering, rosy, sleek,
   thriving, vigorous