Synonyms|476Antonyms|57|Broader|2Narrower|0Related|256

291 entries under adjective topic. ×

1
hard-line(persistent, obstinate, insistent, dogged)
1
hard-shell(persistent, obstinate, insistent, dogged)
1
hard-shelled(persistent, obstinate, insistent, dogged)
1
hardboiled(serious, resolute, persistent, unwavering)
1
hardhearted(mean, severe, harsh, cruel)
1
harsh(mean, severe, cruel, determined)
1
hatchet job(expression, mean, severe, harsh)
1
having a killer instinct(expression, idiom, mean, severe)
1
heartless(mean, severe, harsh, cruel)
1
hidebound(persistent, obstinate, insistent, dogged)
1
icy(smart, bold, wise, brave)
1
in the bag(expression, idiom, certain, limited)
1
incessant(strong, firm, determined, steady)
1
inexhaustible(strong, firm, energetic, determined)
1
inhuman(harsh, cruel, determined, fierce)
1
inhumane(mean, severe, harsh, cruel)
1
insubordinate(persistent, obstinate, insistent, dogged)
1
insurgent(persistent, obstinate, insistent, dogged)
1
iron-fisted(mean, severe, harsh, cruel)
1
iron-willed
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ChicagoSmart Define. 2015. "unflinching thesaurus" https://smartdefine.org/unflinching/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, unflinching thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/unflinching/thesaurus/synonyms>.
MLASmart Define. "unflinching thesaurus" 10 April 2015. Web. 26 September 2026. <https://smartdefine.org/unflinching/thesaurus/synonyms>