pain pleasure principle (noun) pleasure principle: principle behind instincts
Sinonime: active, alert, blooming, bouncing, bright, bright-eyed, bushy-tailed, chipper, clear, creamy, dewy, fair, florid, glowing, good, hardy, invigorated, keen, like new, lively, refreshed, rehabilitated, relaxed, relieved, rested, restored, revived, rosy, ruddy, sprightly, spry, stimulated, undimmed, unfaded, unused, unwearied, unwithered, verdant, vigorous, vital, wholesome, young
Antonime: reality principle