upbeat

(s) pleasantly (even unrealistically) optimistic pollyannaish, cheerful,

Nouns

(n) a contented state of being happy and healthy and prosperous
- the town was finally on the upbeat after our recent troubles
eudaemonia, eudaimonia, wellbeing, well-being, welfare,
(n) an unaccented beat (especially the last beat of a measure) offbeat,

Synonyms

pollyannaish cheerful eudaemonia eudaimonia wellbeing well-being welfare offbeat

Antonyms

ill-being

Words of close approximity