Good humor
mirth, merrymaking, cheer, merriment, joyousness, vivacity, laughter, delight, gladness, good spirits, hilarity, playfulness, exuberance, gaiety, cheerfulness, buoyancy, good will, rejoicing, joviality, exhilaration, felicity, jollity, jocularity, glee, geniality, good cheer, lightheartedness, joy; see also humor 3.
Antonyms sadness*, sorrow, unhappiness.
Inner satisfaction
exhilaration, contentment, bliss, blissfulness, joyfulness, beatitude, blessedness, enchantment, sanctity, ecstasy, rapture, transport, exultation, entrancement, peace, felicity, euphoria, peace of mind, tranquillity, inner joy, freedom from care, pleasure, elation, delirium, optimism, self-satisfaction, benignity, hopefulness, serenity, comfort, blitheness, complacency, gratification, paradise*, seventh heaven*; see also comfort 1, ease 1, satisfaction 2.
Antonyms melancholy, depression*, dejection.