Synonyms|102Antonyms|54|Broader|21Narrower|26Related|385
-2
oppressive(adjective, severity, sophistication, harshness, grievousness)
-2
sore(adjective, severity, sophistication, harshness, grievousness)
-2
dangerous
-2
great
-3
major
-3
massive(adjective, severity, sophistication, harshness, grievousness)
-3
matter of fact(expression, adjective, idiom, unimportant, sober)
-3
deep
-3
devout
-4
dull
-4
feller(adjective, friendly, sober, disciplined, well-ordered)
-4
acute
-4
bad
-4
big
<123>
For more, visit Unserious on Power Thesaurus
11 years ago|1.2k views|share |citing 
APASmart Define. (2015). unserious thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/unserious/thesaurus/antonyms
ChicagoSmart Define. 2015. "unserious thesaurus" https://smartdefine.org/unserious/thesaurus/antonyms (accessed September 29, 2026).
HarvardSmart Define 2015, unserious thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/unserious/thesaurus/antonyms>.
MLASmart Define. "unserious thesaurus" 10 April 2015. Web. 29 September 2026. <https://smartdefine.org/unserious/thesaurus/antonyms>