135 entries under adjective topic. ×
| obligatory(sound, certain, true, significant) | |
| necessary(sound, essential, inexorable, required) | |
| essential(significant, basic, vital, necessary) | |
| tying(verb, fastening, restrictive, restraining) | |
| compulsory(sound, certain, true, significant) | |
| inevitable(certain, expected, predictable, required) | |
| mandatory(set, significant, affected, essential) | |
| required(significant, essential, basic, vital) | |
| confining(verb, severe, harsh, stiff) | |
| imperative(significant, essential, basic, vital) | |
| valid(sound, right, reasonable, severe) | |
| constraining(verb, required, obligatory, restraining) | |
| requisite(significant, essential, basic, vital) | |
| stringent(sound, reasonable, severe, rational) | |
| constricting(verb, restraining) | |
| legal(sound, reasonable, rational) | |
| authoritative(sound, reasonable, rational, unconditional) | |
| compelling(verb, sound, reasonable, severe) | |
| dutiful(obedient, well-behaved) | |
| effectual(influential, authoritative) |
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| APA | Smart Define. (2015). binding thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/binding/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "binding thesaurus" https://smartdefine.org/binding/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, binding thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/binding/thesaurus/synonyms>. |
| MLA | Smart Define. "binding thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/binding/thesaurus/synonyms> |