6 entries under unimpassioned topic. ×

3
sober(adjective, upset, light, frivolous, disciplined)
1
sincere(adjective, false, sober, disciplined, insincere)
1
hardboiled(adjective, upset, light, sober, disciplined)
1
somber(adjective, light, bright, sober, disciplined)
1
unexcited(adjective, light, happy, sober, disciplined)
-4
feller(adjective, friendly, sober, disciplined, well-ordered)
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APASmart Define. (2015). unserious thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/unserious/thesaurus/antonyms
ChicagoSmart Define. 2015. "unserious thesaurus" https://smartdefine.org/unserious/thesaurus/antonyms (accessed October 1, 2026).
HarvardSmart Define 2015, unserious thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/unserious/thesaurus/antonyms>.
MLASmart Define. "unserious thesaurus" 10 April 2015. Web. 1 October 2026. <https://smartdefine.org/unserious/thesaurus/antonyms>