20
gravity(noun, note, concern, interest, condition)
19
solemnity(noun, organization, calm, feeling, praise)
13
sincerity(noun, feeling, passion, importance, significance)
13
earnestness(noun, work, feeling, passion, resolve)
9
earnest(noun, importance, significance, warrant, gravity)
9
importance(noun, note, concern, interest, need)
9
urgency(noun, concern, importance, need, significance)
8
sobriety(noun, concern, importance, significance, intensity)
7
commitment(noun, passion, determination, enthusiasm, resolution)
7
intensity(noun, feeling, passion, strength, excitement)
7
severity(noun, concern, importance, harshness, gravity)
7
weightiness(noun, note, concern, interest, condition)
6
fervor(noun, feeling, passion, excitement, enthusiasm)
6
serious-mindedness(noun, importance, significance, intensity, warrant)
6
soberness(noun, severity, strictness, somberness, sternness)
5
distressfulness
5
moment(noun, note, concern, interest, importance)
5
sedateness(noun, concern, importance, significance, gravity)
5
solemnness
5
staidness(noun, concern, importance, significance, gravity)
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APASmart Define. (2015). seriousness thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/seriousness/thesaurus/synonyms
ChicagoSmart Define. 2015. "seriousness thesaurus" https://smartdefine.org/seriousness/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, seriousness thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/seriousness/thesaurus/synonyms>.
MLASmart Define. "seriousness thesaurus" 23 December 2015. Web. 21 September 2026. <https://smartdefine.org/seriousness/thesaurus/synonyms>