Synonyms and related words :
balmy, blooming, blossoming, booming, clear, exuberant, fair, fat, flourishing, flowering, fruiting, halcyon, in full force, in full swing, in good case, palmy, piping, prospering, rosy, sleek, thriving, unabated, unallayed, unbated, undiminished, unexhausted, unfaded, unflagging, unshaken, unweakened, unweakening, unwithered, unworn, vigorous