62 entries under serious topic. ×

1
for real(expression, adjective, thoughtful, sober)
1
grave(adjective, close, set, severe, honest)
1
hard-as-nails(adjective, resolute, persistent, unwavering)
1
hardboiled(adjective, resolute, persistent, unwavering)
1
intense(adjective, harsh, cruel, determined, fixed)
1
mean business(expression, adjective, thoughtful, sober)
1
meaningful(adjective, severe, thoughtful, sober)
1
no-fooling(adjective, thoughtful, sober, sincere)
1
no-nonsense(adjective, set, severe, honest, thoughtful)
1
on ice(expression, adjective, definite, resolute)
1
pat(adjective, determined, usual, regular)
1
playing hard ball(expression, adjective, idiom, thoughtful, sober)
1
sedate(adjective, set, severe, honest, thoughtful)
1
sober(adjective, close, set, severe, honest)
1
solemn(adjective, set, severe, honest, thoughtful)
1
somber(adjective, severe, honest, thoughtful, sober)
1
staid(adjective, set, severe, honest, thoughtful)
1
weighty(adjective, severe, honest, harsh, cruel)
0
bound and determined
0
deep(adjective, fixed, sober, absorbed)
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APASmart Define. (2015). resolved thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/resolved/thesaurus/synonyms
ChicagoSmart Define. 2015. "resolved thesaurus" https://smartdefine.org/resolved/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, resolved thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/resolved/thesaurus/synonyms>.
MLASmart Define. "resolved thesaurus" 3 August 2015. Web. 24 September 2026. <https://smartdefine.org/resolved/thesaurus/synonyms>