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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