Synonyms|733Antonyms|207|Broader|5Narrower|0Related|193

65 entries under hard topic. ×

1
iron(adjective, set, stiff, rigid)
1
pitiless(adjective, severe, harsh, cruel)
1
punctilious(adjective, tough, severe, rough)
1
resolute(adjective, rigid, inflexible, strict)
1
ruthless(adjective, severe, harsh, cruel)
1
scrupulous(adjective, tough, severe, rough)
1
staunch(adjective, set, stiff, rigid)
1
steadfast(adjective, set, stiff, rigid)
1
steely(adjective, set, stiff, rigid)
1
unadaptable(adjective, set, stiff, rigid)
1
unchangeable(adjective, set, stiff, rigid)
1
uncompliant(adjective, set, stiff, rigid)
1
unfeeling(adjective, tough, severe, sharp)
1
unkind(adjective, tough, severe, sharp)
1
unpermissive(adjective, tough, severe, rough)
1
unpleasant(adjective, tough, severe, sharp)
1
unswayable(adjective, set, stiff, rigid)
0
cussed(adjective, severe, sharp, nasty)
0
discourteous(adjective, severe, sharp, nasty)
0
hairy(adjective, severe, sharp, nasty)
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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>