13 entries under lighthearted topic. ×

27
bright(adjective, pleasant, happy, lively, merry)
25
cheerful(adjective, feature, state, pleasant, bright)
22
happy(adjective, feature, state, pleasant, bright)
17
upbeat(adjective, feature, state, pleasant, bright)
14
sunny(adjective, feature, state, pleasant, bright)
10
joyful(adjective, feature, state, pleasant, bright)
6
gay(adjective, feature, state, pleasant, bright)
6
lively(adjective, feature, state, pleasant, bright)
5
jaunty(adjective, feature, state, pleasant, bright)
3
peppy(adjective, feature, state, pleasant, bright)
3
vivacious(adjective, feature, state, pleasant, bright)
1
animated(pleasant, bright, happy, cheerful, confident)
1
effervescent(pleasant, bright, happy, cheerful)
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APASmart Define. (2016). optimistic thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/optimistic/thesaurus/synonyms
ChicagoSmart Define. 2016. "optimistic thesaurus" https://smartdefine.org/optimistic/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2016, optimistic thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/optimistic/thesaurus/synonyms>.
MLASmart Define. "optimistic thesaurus" 23 March 2016. Web. 20 September 2026. <https://smartdefine.org/optimistic/thesaurus/synonyms>