3
snugly
3
stingily(adverb, stingily)
3
strongly(adverb, fast, severely, thoroughly, intensely)
3
thriftily(adverb, stingily)
3
toughly(adverb, difficultly)
2
arduously(adverb, difficultly)
2
austerely(adverb, stingily)
2
firm(adverb, hard, fast, severely, thoroughly)
2
hardly
2
harshly(adverb, difficultly)
2
hermetically
2
niggardly
2
rigorously(adverb, fast, intensely, fiercely, violently)
2
stable(adjective, firm, firmly)
2
stably(adverb, severely, thoroughly, strongly, firmly)
2
steadily(adverb, firm, strongly, firmly, definitely)
2
steady(adjective, firm, firmly)
2
strenuously(adverb, difficultly)
2
stringently
1
abruptly
11 years ago|6.4k views|share |citing 
APASmart Define. (2015). tightly thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/tightly/thesaurus/synonyms
ChicagoSmart Define. 2015. "tightly thesaurus" https://smartdefine.org/tightly/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, tightly thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/tightly/thesaurus/synonyms>.
MLASmart Define. "tightly thesaurus" 14 April 2015. Web. 21 September 2026. <https://smartdefine.org/tightly/thesaurus/synonyms>