Synonyms|119Antonyms|38|Broader|0Narrower|0Related|84
1
steadfast(adjective, set, hard, stiff, rigid)
1
steely(adjective, set, hard, stiff, rigid)
1
stringent(adjective, set, hard, stiff, rigid)
1
ultimate
1
unadaptable(adjective, set, hard, stiff, rigid)
1
unalterable(adjective, strict)
1
uncompliant(adjective, set, hard, stiff, rigid)
1
uncompromising(adjective, set, hard, stiff, rigid)
1
unswayable(adjective, set, hard, stiff, rigid)
1
written(adjective, strict)
0
abiding(inflexible, intent)
0
adamant(hard, resolute, rigid, inflexible, strict)
0
adamantine(hard, resolute, rigid, inflexible, strict)
0
agreed(inflexible, intent)
0
arranged(inflexible, intent)
0
carved in stone(adjective, strict)
0
cast-iron(inflexible, intent)
0
changeless(inflexible, intent)
0
circumscribed(inflexible, intent)
0
confirmed(inflexible, intent)
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APASmart Define. (2015). hard-and-fast thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/hard-and-fast/thesaurus/synonyms
ChicagoSmart Define. 2015. "hard-and-fast thesaurus" https://smartdefine.org/hard-and-fast/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, hard-and-fast thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/hard-and-fast/thesaurus/synonyms>.
MLASmart Define. "hard-and-fast thesaurus" 14 April 2015. Web. 29 September 2026. <https://smartdefine.org/hard-and-fast/thesaurus/synonyms>