17 entries under obligation topic. ×

12
prerequisite(noun, condition, need, essential, certainty)
11
condition(noun, need, essential, essence, basic)
9
necessity(noun, condition, need, essential, essence)
9
requirement(noun, concern, condition, demand, need)
7
must(noun, condition, need, essential, certainty)
7
sine qua non(noun, expression, idiom, condition, need)
6
requisite(noun, condition, need, essential, certainty)
1
fundamental(noun, concern, demand, need, essential)
1
imperative(noun, concern, demand, need, essential)
1
necessary(need, essential, requirement, necessity)
0
charge
0
commitment
0
committal
0
devoir
0
duty
0
ought
0
right
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APASmart Define. (2015). precondition thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/precondition/thesaurus/synonyms
ChicagoSmart Define. 2015. "precondition thesaurus" https://smartdefine.org/precondition/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, precondition thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/precondition/thesaurus/synonyms>.
MLASmart Define. "precondition thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/precondition/thesaurus/synonyms>