98 entries under adjective topic. ×

2
important(essential, vital, necessary)
1
all-important(significant, essential, basic, vital)
1
chief(significant, essential, basic, vital)
1
commanding
1
expedient(significant, essential, basic, vital)
1
incumbent on(expression, significant, essential, basic)
1
name of game(expression, idiom, significant, essential)
1
obvious(certain, definite, unquestionable, indisputable)
1
of the essence(expression, idiom, important, essential)
1
payable
1
prescribed(expected, predictable, necessary, inexorable)
1
proviso
1
quintessential(significant, essential, basic, vital)
1
specified(significant, essential, basic, vital)
1
stipulated
1
undeniable(definite, expected, predictable, necessary)
1
unwilling(affected, impulsive, strained, artificial)
1
wanted(significant, essential, basic, vital)
0
basic(significant, essential, vital, fundamental)
0
bottom-line(significant, essential, basic, vital)
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APASmart Define. (2015). obligatory thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/obligatory/thesaurus/synonyms
ChicagoSmart Define. 2015. "obligatory thesaurus" https://smartdefine.org/obligatory/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, obligatory thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/obligatory/thesaurus/synonyms>.
MLASmart Define. "obligatory thesaurus" 14 April 2015. Web. 27 September 2026. <https://smartdefine.org/obligatory/thesaurus/synonyms>