138 entries under strict topic. ×

1
undeviating(adjective, severe, harsh, solid, exact)
1
unfeeling(adjective, hard, tough, severe, sharp)
1
unjust(adjective, tough, severe, harsh, cruel)
1
unkind(adjective, hard, tough, severe, sharp)
1
unpermissive(adjective, hard, tough, severe, rough)
1
unpleasant(adjective, hard, tough, severe, sharp)
1
unswayable(adjective, set, hard, stiff, rigid)
1
unsympathetic(adjective, tough, harsh, cruel, grim)
0
cold-blooded(adjective, tough, harsh, cruel, grim)
0
cold fish(expression, adjective, tough, harsh, cruel)
0
hard as nails(expression, adjective, idiom, tough, severe)
0
heavy(adjective, severe, harsh, cruel, brutal)
0
indomitable(hard, resolute, rigid, inflexible)
0
intransigent(severe, stiff, inflexible, obstinate)
0
rancorous(adjective, tough, harsh, cruel, grim)
0
thick-skinned(adjective, tough, harsh, cruel, grim)
0
vengeful(adjective, tough, harsh, cruel, grim)
0
wicked(adjective, hard, severe, sharp, nasty)
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APASmart Define. (2015). stringent thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/stringent/thesaurus/synonyms
ChicagoSmart Define. 2015. "stringent thesaurus" https://smartdefine.org/stringent/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, stringent thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/stringent/thesaurus/synonyms>.
MLASmart Define. "stringent thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/stringent/thesaurus/synonyms>