80 entries under sober topic. ×

1
rapt(adjective, reasonable, keen, deep, rational)
1
rational(adjective, calm, quiet, reasonable, keen)
1
reasonable(adjective, calm, quiet, keen, dark)
1
reasoning(adjective, reasonable, keen, deep, rational)
1
reflecting(adjective, reasonable, keen, deep, rational)
1
reflective(adjective, set, severe, honest, thoughtful)
1
resolved(adjective, close, set, severe, honest)
1
retrospective(adjective, reasonable, keen, deep, rational)
1
stable(adjective, thoughtful, serious, sincere)
1
studious(adjective, reasonable, keen, deep)
1
subjective(adjective, reasonable, keen, deep, rational)
1
thinking(adjective, reasonable, keen, deep, rational)
1
wise(adjective, reasonable, keen, deep, grand)
0
constant(adjective, thoughtful, serious, sincere)
0
cool as cucumber(expression, idiom, calm, quiet, cool)
0
fixed(adjective, thoughtful, serious, sincere)
0
for real(expression, adjective, thoughtful, serious)
0
mean business(expression, adjective, thoughtful, serious)
0
no-fooling(adjective, thoughtful, serious, sincere)
0
seemly(adjective, calm, quiet, cool)
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APASmart Define. (2016). grave thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/grave/thesaurus/synonyms
ChicagoSmart Define. 2016. "grave thesaurus" https://smartdefine.org/grave/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, grave thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/grave/thesaurus/synonyms>.
MLASmart Define. "grave thesaurus" 29 March 2016. Web. 26 September 2026. <https://smartdefine.org/grave/thesaurus/synonyms>