40 entries under severely topic. ×

10
watchfully(adverb, thoroughly, fully, precisely)
8
attentively(adverb, thoroughly, fully, precisely)
8
carefully(adverb, thoroughly, vigorously, earnestly)
7
heedfully(adverb, thoroughly, fully, precisely)
5
providently(adverb, thoroughly, fully, precisely)
5
prudently(adverb, thoroughly, fully, precisely)
5
scrupulously(adverb, thoroughly, fully, precisely)
4
thoughtfully(adverb, thoroughly, fully, precisely)
4
warily(adverb, thoroughly, fully, precisely)
3
circumspectly(adverb, thoroughly, fully, precisely)
3
concernedly(adverb, thoroughly, fully, precisely)
2
conscientiously(adverb, thoroughly, fully, precisely)
2
fastidiously(adverb, thoroughly, fully, precisely)
2
guardedly(adverb, thoroughly, fully, precisely)
2
meticulously(adverb, thoroughly, fully, precisely)
2
particularly(adverb, thoroughly, fully, precisely)
2
precisely(adverb, thoroughly, fully, correctly)
2
thoroughly(adverb, fully, precisely, correctly)
1
anxiously(adverb, thoroughly, fully, precisely)
1
cautiously painstakingly(expression, thoroughly, fully, precisely)
<12>
13 years ago|2.4k views|share |citing 
APASmart Define. (2013). vigilantly thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/vigilantly/thesaurus/synonyms
ChicagoSmart Define. 2013. "vigilantly thesaurus" https://smartdefine.org/vigilantly/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2013, vigilantly thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/vigilantly/thesaurus/synonyms>.
MLASmart Define. "vigilantly thesaurus" 17 June 2013. Web. 28 September 2026. <https://smartdefine.org/vigilantly/thesaurus/synonyms>