Ludic adj. Of undirected and spontaneous playfulness.
It seems that the root origin of "Ludicrous" isn't so bad.
Positive Nouns that Describe People
Ludic spirits play,
Laughter echoes in the sun,
Joy in every way.
If you don't feel like being "Ludic" today choose one-to-three of the following instead:
Amiable, Ameliorative, Amused, Amusing, Ascendant, Auspicious, Beatific, Blissful, Blythe, Blithesome, Boisterous, Bonzer, Brilliant, Buoyant, Carefree, Celebratory, Cheerful, Cheery, Childlike, Chuffed, Chipper, Cock-a-hoop, Cohortative, Coltish, Confelicitous, Content, Contented, Couthie, Crackerjack, Dapatical, Delightful, Delighted, Diverted, Droll, Easygoing, Effulgent, Elated, Enjoyable, Eudaemonistic, Euphoric, Excelsior, Exhilarated, Exuberant, Fain, Fantastic, Festal, Festive, Frabjous, Free, Frolicsome, Fulgent, Gelastic, Gelogenic, Glad, Gleeful, Good, Good-humoured, Good-natured, Grateful, Gratified, Happy, Happy-go-lucky, Harmonic/Harmonious, Heartsome, Humorous, Hunky-dory, In a good mood, In good spirits, Insouciant, Jiggish, Jocose, Jocoserious, Jocular, Jolif, Jolly, Jovial, Joyful, Joyous, Jubilant, Lepid, Liefly, Light, Light-hearted, Lively, Ludibund, Lusory, Mabsoot, Merry, Mirthful, Optimistic, Overjoyed, Panglossian, Peppy, Perky, Playful, Pleasant, Pleased, Positive, Profulgent, Radiant, Rejuvenated, Rejuvenescent, Relaxed, Reviviscent, Rhapsodic, Risible, Rollicking, Sanguine, Satisfied, Shining, Slamin', Sportive, Sprightly, Sunny, Supercalifragilisticexpialidocious, Thrilled, Thrilling, Tickled, Twitterpated, Uber, Upbeat, Upbuilding, Uplifted, Uplifting, Vegete, Vibrant, Vitative, Vivacious, Waggish, Weleful, Welsome, Whimsical, Wonderful, Zoetic