| harum-scarum(adjective, feature, state, trait) |
| heartwarming |
| hearty(adjective, pleasant, bright, happy, lively) |
| holiday(adjective, happy, merry, cheerful, joyful) |
| in good spirits(expression, idiom, pleasant, bright, happy) |
| in high spirits(expression, idiom, pleasant, bright, happy) |
| indifferent(adjective, feature, state, trait) |
| ironic |
| irregular(lively, unpredictable, changeable, temperamental, resilient) |
| irrepressible(lively, unpredictable, changeable, temperamental, resilient) |
| irresponsible(adjective, feature, state, trait) |
| jokey(adjective, pleasant, bright, happy, merry) |
| jollying(adjective, pleasant, happy, cheerful, jolly) |
| joshing(adjective, pleasant, bright, happy, merry) |
| juiced up(expression, adjective, happy, merry, cheerful) |
| jumping(adjective, pleasant, happy, lively, merry) |
| keeping the faith(expression, idiom, cheerful, optimistic, expectant) |
| languid(adjective, feature, state, trait) |
| larking(adjective, pleasant, bright, happy, merry) |
| lax(adjective, feature, state, trait) |