35 entries under tough topic. ×

1
rigorous(adjective, severe, firm, harsh)
1
set(adjective, severe, firm, harsh)
1
severe(firm, harsh, stiff, inflexible)
1
square(adjective, severe, firm, harsh)
1
stern(adjective, severe, firm, harsh)
1
stickling(adjective, severe, firm, harsh)
1
straight(adjective, severe, firm, harsh)
1
strait-laced(adjective, severe, firm, harsh)
1
stringent(adjective, severe, firm, harsh)
1
stuffy(adjective, severe, firm, harsh)
1
unpermissive(adjective, severe, firm, harsh)
1
uptight(adjective, severe, firm, harsh)
0
ironfisted(rigid, scrupulous)
0
scrupulous(adjective, severe, firm, harsh)
0
unsparing(severe, firm, harsh, stern)
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APASmart Define. (2015). dead set thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/dead_set/thesaurus/synonyms
ChicagoSmart Define. 2015. "dead set thesaurus" https://smartdefine.org/dead_set/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, dead set thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/dead_set/thesaurus/synonyms>.
MLASmart Define. "dead set thesaurus" 13 April 2015. Web. 27 September 2026. <https://smartdefine.org/dead_set/thesaurus/synonyms>