3
hard to please(expression, adjective, idiom, tough, rough)
3
hidebound(adjective, severe, persistent, obstinate, insistent)
3
instant
3
intractable(adjective, tough, persistent, obstinate, problematic)
3
mean(adjective, hard, severe, rough, difficult)
3
merciless(adjective, hard, tough, severe, rough)
3
minute
3
nit-picking(adjective, severe, sharp, rough, harsh)
3
pernickety
3
persistent(adjective, obstinate, insistent, dogged)
3
pitiless(adjective, hard, tough, severe, harsh)
3
priggish(adjective, fastidious)
3
proper(adjective, fastidious)
3
prudent(adjective, thoughtful, sober, cautious, wary)
3
querulous(adjective, fastidiousness)
3
refined
3
rigourous
3
sedulous(adjective, thorough, meticulous, painstaking)
3
stony(adjective, hard, tough, severe, cruel)
3
thoroughgoing(adjective, thorough, meticulous, painstaking)
10 years ago|21k views|share |citing 
APASmart Define. (2016). exacting thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/exacting/thesaurus/synonyms
ChicagoSmart Define. 2016. "exacting thesaurus" https://smartdefine.org/exacting/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, exacting thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/exacting/thesaurus/synonyms>.
MLASmart Define. "exacting thesaurus" 29 March 2016. Web. 23 September 2026. <https://smartdefine.org/exacting/thesaurus/synonyms>