390 entries under adjective topic. ×

2
obdurate(strong, tough, flat, firm)
2
obstructed(limited, controlled, constrained)
2
persevering(strong, tough, flat, firm)
2
plighted(steady, tight, involved, engaged)
2
reliable(resolute, persistent, certainty, dedicated)
2
rigid(firm, harsh, cruel, determined)
2
serious(somber, humorless)
2
servile
2
shut up(verb, expression, cool, restrain)
2
sound(verb, check, strong, mark)
2
stable(close, strong, flat, firm)
2
staunch(strong, tough, flat, firm)
2
steadfast(strong, tough, flat, firm)
2
steady(set, strong, severe, flat)
2
stubborn(strong, tough, firm, intense)
2
subordinate
2
subservient
2
tight(close, strong, tough, firm)
2
unbending(strong, flat, firm, harsh)
2
under
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APASmart Define. (2016). bound thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/bound/thesaurus/synonyms
ChicagoSmart Define. 2016. "bound thesaurus" https://smartdefine.org/bound/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2016, bound thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/bound/thesaurus/synonyms>.
MLASmart Define. "bound thesaurus" 26 February 2016. Web. 23 September 2026. <https://smartdefine.org/bound/thesaurus/synonyms>