Synonyms|134Antonyms|50|Broader|0Narrower|0Related|51
1
crucially
1
deeply
1
soberly
0
applicably
0
arduously
0
austerely
0
badly
0
burdensomely
0
capaciously
0
cavernously
0
cogently
0
cosmically
0
deep
0
direly
0
drastically
0
earnestly
0
egregiously
0
epically
0
essentially
0
festively
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APASmart Define. (2015). frivolously thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/frivolously/thesaurus/antonyms
ChicagoSmart Define. 2015. "frivolously thesaurus" https://smartdefine.org/frivolously/thesaurus/antonyms (accessed September 23, 2026).
HarvardSmart Define 2015, frivolously thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/frivolously/thesaurus/antonyms>.
MLASmart Define. "frivolously thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/frivolously/thesaurus/antonyms>