148 entries under hard topic. ×

2
flinty(adjective, strong, tough, severe)
2
frowning(adjective, strong, tough, severe)
2
immovable(adjective, strong, tough, sturdy)
2
incomplete(adjective, raw, basic, rough-and-ready)
2
inhuman(adjective, mean, harsh, cold)
2
merciless(adjective, appearance, severe, harsh)
2
mortified(adjective, strong, tough, severe)
2
punitive(adjective, severe, sharp, nasty)
2
strong(adjective, tough, severe, cold)
2
stubborn(adjective, appearance, strong, tough)
2
unkind(adjective, tough, severe, sharp)
2
unpleasant(adjective, tough, severe, sharp)
1
abusive(adjective, severe, sharp, nasty)
1
adamantine(adjective, strong, tough, severe)
1
barbarous(adjective, appearance, mean, simple)
1
bullheaded(adjective, strong, tough, severe)
1
by the book(expression, adjective, idiom, strong)
1
callous(adjective, mean, tough, harsh)
1
cold-blooded(adjective, tough, harsh, cruel)
1
cold-hearted(adjective, cool, cold, detached)
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APASmart Define. (2016). austere thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/austere/thesaurus/synonyms
ChicagoSmart Define. 2016. "austere thesaurus" https://smartdefine.org/austere/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2016, austere thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/austere/thesaurus/synonyms>.
MLASmart Define. "austere thesaurus" 22 January 2016. Web. 27 September 2026. <https://smartdefine.org/austere/thesaurus/synonyms>