1
ruggedly
1
ruthlessly
1
sedately(adverb, down, seriously, vigorously, earnestly)
1
shortly(adverb, severely)
1
simmer down(expression, adverb, seriously, vigorously, earnestly)
1
soberly(adverb, down, seriously, vigorously, earnestly)
1
sourly
1
sparely(adverb, severely)
1
stiffly
1
straighten out(expression, adverb, seriously, vigorously, earnestly)
1
tartly(adverb, severely)
1
thoughtfully(adverb, seriously, vigorously, earnestly, actively)
1
tightly
1
toughly
1
uncharitably
1
unfeelingly
1
unhealthy
1
venting
1
vigorously(adverb, seriously, earnestly, actively, truly)
1
violently
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APASmart Define. (2015). sternly thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/sternly/thesaurus/synonyms
ChicagoSmart Define. 2015. "sternly thesaurus" https://smartdefine.org/sternly/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, sternly thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/sternly/thesaurus/synonyms>.
MLASmart Define. "sternly thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/sternly/thesaurus/synonyms>