539 entries under noun topic. ×

5
prerequisite(condition, want, need, essential)
5
sine qua non(expression, idiom, condition, need)
4
affair(activity, business, action, work)
4
arrears(damage, condition, pay, balance)
4
cause(reason, need, responsibility, essential)
4
coercion(trouble, force, drive, power)
4
due(damage, burden, pay, balance)
4
force(trouble, power, strength, energy)
4
inevitability(need, essential, requirement, prerequisite)
4
inexorability
4
loyalty(burden, responsibility, liability, onus)
4
mission(business, action, work, charge)
4
occupation(business, place, work, charge)
4
ought(verb, work, charge, right)
4
restraint(charge, concern, burden, authority)
4
right(cause, concern, reason, care)
4
role(action, place, work, charge)
4
stint(activity, performance, action, work)
4
strain(trouble, force, power, strength)
4
thankfulness(appreciation, recognition, thanks, gratitude)
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APASmart Define. (2015). obligation thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/obligation/thesaurus/synonyms
ChicagoSmart Define. 2015. "obligation thesaurus" https://smartdefine.org/obligation/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, obligation thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/obligation/thesaurus/synonyms>.
MLASmart Define. "obligation thesaurus" 22 December 2015. Web. 30 September 2026. <https://smartdefine.org/obligation/thesaurus/synonyms>