Synonyms and Antonyms of optional
subject to one's freedom of choice at the resort all recreational activities are optional, and you may choose to participate in none of them Synonyms discretionary, elective, voluntary Related Words alternate, alternative, chosen; dispensable, unnecessary, unneeded, unwanted Near Antonyms essential, indispensable, necessary, requisite Antonyms compulsory, mandatory, nonelective, nonvoluntary, obligatory, required
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