36 entries under adjective topic. ×

4
inflexible(hard, strict, obstinate, stubborn)
4
set(hard, stiff, resolute, rigid)
4
strict(hard, rigid, inflexible, obstinate)
3
absolute
3
binding
3
compulsory
3
conclusive
3
decisive
3
final
3
irrevocable
3
mandatory
2
exacting
2
inalterable(hard, inflexible, intent, unalterable)
2
unbending(hard, rigid, inflexible, strict)
2
unchangeable(set, hard, certain, stiff)
1
dogged(set, hard, stiff, rigid)
1
fixed(set, hard, certain, stiff)
1
immutable(set, hard, stiff, rigid)
1
intractable(set, hard, stiff, rigid)
1
iron(set, hard, stiff, rigid)
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APASmart Define. (2015). hard-and-fast thesaurus. Retrieved September 28, 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 28, 2026).
HarvardSmart Define 2015, hard-and-fast thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/hard-and-fast/thesaurus/synonyms>.
MLASmart Define. "hard-and-fast thesaurus" 14 April 2015. Web. 28 September 2026. <https://smartdefine.org/hard-and-fast/thesaurus/synonyms>