Dictionary

optional

adjective op·tion·al \ˈäp-shnəl, -shə-n^əl\

: available as a choice but not required

Full Definition of OPTIONAL

: involving an option : not compulsory

— op·tion·al·i·ty \ˌäp-shə-ˈna-lə-tē\ noun

— op·tion·al·ly adverb

See optional defined for English-language learners

See optional defined for kids

1765

Antonyms: compulsory, mandatory, nonelective, nonvoluntary, obligatory, required

OPTIONAL Defined for Kids

adjective op·tion·al \ˈäp-shə-n^əl\

: left to choice : not required <Costumes are optional at the party.>

Next Word in the Dictionary: optionalizePrevious Word in the Dictionary: option All Words Near: optional

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