Synonyms of entertaining

1 Syllable
riot, gay, schtick, fun, droll, gas, funs, scream, gump
2 Syllables
racier, witty, stirring, piquant, clever, booner, striking, grouper, wittier, funnier, go-go, boffo, chirpy, thrilling, funny, social, campy, poignant, charming, droller, moving, laughing, jolly, screamer, rioter, larking, merrier, grooving, mirthful, zappy, zingy, pleasing, cheering, rousing, funniest, laffer, cheerful, racy, merry, merriest, jollier, zingier, pleasant, goofus, har-har, gogo, campiest
3 Syllables
gladsome, enticing, priceless, humorous, inspiring, livelier, riproaring, delightful, engaging, relaxing, enjoyable, gelastic, gut-busting, hilarious, back-slapping, comical, engrossing, rip-roaring, backslapping, compelling, amusing, absorbing, affecting, diverting, enchanting, enthralling, entrancing, convivial, exciting, liveliest, gingery, fool-headed, knee-slapper, side-splitting, lively, societal, laughable
4 Syllables
impressive, derisory, sidesplitting, conversible, glad-handering, recreative, saturnalian, interesting, fascinating, captivating, pleasurable, stimulating
5 Syllables
restorative, provocative