upbeat

1. A contented state of being happy and healthy and prosperous (synset 114470991)
   "the town was finally on the upbeat after our recent troubles"
   is a type of: prosperity, successfulness - the condition of prospering; having good fortune
   subtypes:

   • fool's paradise - an illusory state of wellbeing
   • health, wellness - a healthy state of wellbeing free from disease
   same as: eudaemonia, eudaimonia, welfare, well-being, wellbeing
2. An unaccented beat (especially the last beat of a measure) (synset 107101294)
   is a type of: beat, musical rhythm, rhythm - the basic rhythmic unit in a piece of music
   same as: offbeat

1. Pleasantly (even unrealistically) optimistic (synset 301668480)
   similar to: optimistic - expecting the best in this best of all possible worlds
   same as: cheerful, pollyannaish

Other Searches

• Rhyme: Dillfrog, RhymeZone
• Definition: Wiktionary, Dictionary.com, Wikipedia, Merriam-Webster, WordNet, Power Thesaurus
• Imagery: Google, Flickr, Bing