91 entries under severe topic. ×

1
rigorous(adjective, tough, firm, harsh)
1
rough(adjective, harsh, stiff, rigid)
1
ruthless(adjective, mean, harsh, cruel)
1
set(adjective, tough, firm, harsh)
1
square(adjective, tough, firm, harsh)
1
stern(adjective, tough, firm, harsh)
1
stickling(adjective, tough, firm, harsh)
1
stiff(adjective, harsh, rigid, tight)
1
straight(adjective, tough, firm, harsh)
1
stringent(adjective, tough, firm, harsh)
1
unappeasable(adjective, mean, harsh, cruel)
1
uncalled-for(adjective, mean, harsh, cruel)
1
unfeeling(adjective, mean, harsh, cruel)
1
unflinching(adjective, mean, harsh, cruel)
1
unforgiving(adjective, mean, harsh, cruel)
1
unmerciful(adjective, mean, harsh, cruel)
1
unpermissive(adjective, tough, firm, harsh)
1
unpitying(adjective, mean, harsh, cruel)
1
unsparing(adjective, mean, tough, firm)
1
unyielding(adjective, mean, harsh, cruel)
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APASmart Define. (2015). iron-fisted thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/iron-fisted/thesaurus/synonyms
ChicagoSmart Define. 2015. "iron-fisted thesaurus" https://smartdefine.org/iron-fisted/thesaurus/synonyms (accessed October 1, 2026).
HarvardSmart Define 2015, iron-fisted thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/iron-fisted/thesaurus/synonyms>.
MLASmart Define. "iron-fisted thesaurus" 6 February 2015. Web. 1 October 2026. <https://smartdefine.org/iron-fisted/thesaurus/synonyms>