3
critical(adjective, close, harsh, rigid, honorable)
3
detail oriented(adjective, character, behavior, precise, thorough)
3
difficult
3
energetic
3
exhaustive
3
finical
3
hard
3
intent(adjective, activity, regular, serious, practical)
3
ironclad(adjective, character, behavior, pedant)
3
neat(adjective, exact, careful, regular, precise)
3
nice(honorable, reliable, demanding, scrupulous, meticulous)
3
perfected(adjective, fancy, exact, complex, involved)
3
persnickety(adjective, harsh, informal, careful, thorough)
3
strenuous(adjective, thorough, exertion, meticulous)
3
systematic(adjective, exact, full, careful, regular)
2
blow-by-blow(adjective, close, complete, tough, exact)
2
busy(adjective, fancy, keen, exact, active)
2
care(noun, careful, correctness, precision, conscientiousness)
2
concentrated(adjective, regular, serious, practical, competent)
2
constant
10 years ago|13k views|share |citing 
APASmart Define. (2016). painstaking thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/painstaking/thesaurus/synonyms
ChicagoSmart Define. 2016. "painstaking thesaurus" https://smartdefine.org/painstaking/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, painstaking thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/painstaking/thesaurus/synonyms>.
MLASmart Define. "painstaking thesaurus" 29 March 2016. Web. 24 September 2026. <https://smartdefine.org/painstaking/thesaurus/synonyms>