| saucy |
| sinewy(adjective, strong, tough, fit, healthy) |
| sound(strong, tough, fit, healthy, well) |
| sparkling(adjective, pleasant, bright, happy, energetic) |
| spirited(adjective, energetic, enthusiastic, excited, lively) |
| sportive(happy, energetic, lively, active, joyful) |
| sprightly(adjective, pleasant, bright, happy, energetic) |
| spry(adjective, energetic, lively, active, fun) |
| spunky(adjective, bright, energetic, passionate, determined) |
| stout(strong, tough, fit, healthy, well) |
| strapping(strong, tough, fit, healthy, well) |
| strong(tough, fit, healthy, well, hearty) |
| sturdy(strong, tough, fit, healthy, well) |
| sunny(pleasant, bright, happy, lively, mad) |
| sunny side up(expression, idiom, pleasant, bright, happy) |
| thriving(strong, tough, fit, healthy, well) |
| tough(strong, fit, healthy, well, hearty) |
| unconstrained |
| up(pleasant, bright, happy) |
| upbeat(pleasant, bright, happy) |