16 entries under extremely topic. ×

9
mournfully(adverb, severely, thoroughly, completely, seriously)
4
distressingly(adverb, severely, thoroughly, completely, intensely)
4
gravely(adverb, severely, thoroughly, completely, seriously)
2
seriously(adverb, severely, thoroughly, completely, affirmation)
1
acutely(adverb, badly, severely, thoroughly, completely)
1
affectingly(adverb, severely, thoroughly, completely, intensely)
1
completely(adverb, severely, thoroughly, intensely)
1
feelingly(adverb, severely, thoroughly, completely, intensely)
1
genuinely(adverb, severely, thoroughly, completely, intensely)
1
intensely(adverb, severely, thoroughly, completely)
1
movingly(adverb, severely, thoroughly, completely, intensely)
1
passionately(adverb, severely, thoroughly, completely, intensely)
1
profoundly(adverb, severely, thoroughly, completely, intensely)
1
severely(adverb, badly, completely, intensely)
1
surely(adverb, severely, thoroughly, completely, intensely)
1
thoroughly(adverb, severely, completely, intensely)
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APASmart Define. (2016). sadly thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/sadly/thesaurus/synonyms
ChicagoSmart Define. 2016. "sadly thesaurus" https://smartdefine.org/sadly/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2016, sadly thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/sadly/thesaurus/synonyms>.
MLASmart Define. "sadly thesaurus" 24 March 2016. Web. 21 September 2026. <https://smartdefine.org/sadly/thesaurus/synonyms>