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THESAURUS

Nonobligatory Synonyms & Antonyms

Not obligatory.

Synonyms

discretionaryelectivefacultativefreenoncompulsorynonmandatorynonobligatenonobligatorynonrequirednonrequisiteoptionaloptionaryunrequiredvolitionalvoluntary

Antonyms

basicessentialindispensablenecessarnecessaryneededprerequisiterequiredrequisite

Related Words

nonmandatoryoptionalunobligatorynonobligatenonoptionalunobligatednonobligatednoncompulsorynonrequiredunoptionaluncompulsoryunobligednon-optionalunnecessitatednonimperativenonnecessaryinnecessarynonmandateddisobligatoryunrequired

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