70 entries under thorough topic. ×

14
tough(adjective, dull, hard, easy, severe)
13
critical(adjective, hard, tough, severe, fine)
12
oppressive(adjective, dull, hard, tough, severe)
12
painstaking(adjective, careful, demanding, particular)
10
strenuous(adjective, dull, tough, severe, rough)
10
stringent(adjective, hard, tough, severe, rough)
9
taxing(adjective, hard, tough, severe, rough)
8
burdensome(adjective, dull, hard, tough, severe)
7
diligent(adjective, meticulous, fastidious, vigilant)
7
onerous(adjective, dull, hard, tough, severe)
7
persnickety(adjective, accept, fine, proper, careful)
7
trying(adjective, dull, hard, tough, severe)
6
unsparing(adjective, tough, severe, rough, firm)
4
assiduous(adjective, meticulous, painstaking)
4
heedful(adjective, meticulous, vigilant, painstaking)
4
punctual(adjective, meticulous, painstaking)
3
conscionable(adjective, meticulous, painstaking)
3
earnest(adjective, meticulous, painstaking)
3
hard-working(adjective, meticulous, painstaking)
3
nit-picking(adjective, severe, sharp, rough, harsh)
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APASmart Define. (2016). exacting thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/exacting/thesaurus/synonyms
ChicagoSmart Define. 2016. "exacting thesaurus" https://smartdefine.org/exacting/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, exacting thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/exacting/thesaurus/synonyms>.
MLASmart Define. "exacting thesaurus" 29 March 2016. Web. 24 September 2026. <https://smartdefine.org/exacting/thesaurus/synonyms>