53 entries under adjective topic. ×

-2
sore(severity, sophistication, harshness, grievousness)
-2
dangerous
-2
great
-3
major
-3
massive(severity, sophistication, harshness, grievousness)
-3
matter of fact(expression, idiom, unimportant, sober)
-3
deep
-3
devout
-4
dull
-4
feller(friendly, sober, disciplined, well-ordered)
-4
acute
-4
bad
-4
big
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APASmart Define. (2015). unserious thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/unserious/thesaurus/antonyms
ChicagoSmart Define. 2015. "unserious thesaurus" https://smartdefine.org/unserious/thesaurus/antonyms (accessed September 30, 2026).
HarvardSmart Define 2015, unserious thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/unserious/thesaurus/antonyms>.
MLASmart Define. "unserious thesaurus" 10 April 2015. Web. 30 September 2026. <https://smartdefine.org/unserious/thesaurus/antonyms>