Synonyms|190Antonyms|44|Broader|1Narrower|5Related|93

22 entries under noun topic. ×

3
earnestness
3
seriousness
2
gravity
2
sincerity
2
solemnity
1
dignity
1
graveness
1
sadness
0
enormity
0
height
0
importance
0
magnitude
0
moment
0
potency
0
severity
0
significance
0
staidness
0
strength
0
substance
0
validity
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APASmart Define. (2015). frivolousness thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/frivolousness/thesaurus/antonyms
ChicagoSmart Define. 2015. "frivolousness thesaurus" https://smartdefine.org/frivolousness/thesaurus/antonyms (accessed September 30, 2026).
HarvardSmart Define 2015, frivolousness thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/frivolousness/thesaurus/antonyms>.
MLASmart Define. "frivolousness thesaurus" 14 April 2015. Web. 30 September 2026. <https://smartdefine.org/frivolousness/thesaurus/antonyms>