Synonyms|316Antonyms|26|Broader|0Narrower|0Related|141

76 entries under firm topic. ×

6
unyielding(adjective, strong, hard, tough)
5
uncompromising(adjective, severe, harsh, stubborn)
4
faithful(adjective, close, correct, honest)
4
inflexible(adjective, strong, hard, tough, severe)
4
obstinate(adjective, determined, resolute, impulsive)
4
stern(adjective, severe, harsh, serious)
4
stiff(stubborn, unyielding, unbending)
3
hard(adjective, strong, tough, severe)
3
determined(adjective, resolute, impulsive, stubborn)
3
devoted(adjective, close, correct, honest)
3
die-hard(adjective, honest, upright, sure)
3
resolute(adjective, close, correct, honest)
3
staunch(adjective, close, correct, honest)
3
steadfast(adjective, close, correct, honest)
2
adamant(adjective, strong, hard, tough)
2
ardent(adjective, close, correct, honest)
2
dyed-in-the-wool(adjective, close, strong, hard, tough)
2
enduring(adjective, close, correct, honest)
2
immovable(adjective, strong, hard, tough)
2
implacable(adjective, strong, hard, tough, severe)
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APASmart Define. (2016). hard-core thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/hard-core/thesaurus/synonyms
ChicagoSmart Define. 2016. "hard-core thesaurus" https://smartdefine.org/hard-core/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, hard-core thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/hard-core/thesaurus/synonyms>.
MLASmart Define. "hard-core thesaurus" 28 March 2016. Web. 24 September 2026. <https://smartdefine.org/hard-core/thesaurus/synonyms>