3
energetically(adverb, fast, sprightly, seriously, intensely)
3
intently
3
abruptly(adverb, severely)
3
acidly
3
animatedly(adverb, fast, sprightly, seriously, intensely)
3
anxiously
3
ardently
3
bitingly
3
bitterly
3
bleakly(adverb, severely)
3
deeply
3
fervidly
3
heartily(pleasure, enthusiastically, energetically, aggressively)
3
impatiently
3
perceptively
3
piercingly
3
quickly
3
rigorously(adverb, fast, sprightly, severely, seriously)
3
spiritedly(adverb, fast, sprightly, seriously, intensely)
3
trenchantly
11 years ago|10k views|share |citing 
APASmart Define. (2015). keenly thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/keenly/thesaurus/synonyms
ChicagoSmart Define. 2015. "keenly thesaurus" https://smartdefine.org/keenly/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, keenly thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/keenly/thesaurus/synonyms>.
MLASmart Define. "keenly thesaurus" 14 April 2015. Web. 23 September 2026. <https://smartdefine.org/keenly/thesaurus/synonyms>