adjective op·tion·al \ˈäp-shnəl, -shə-nəl\

: 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

Examples of OPTIONAL

  1. Jackets are required at the restaurant, but ties are optional.
  2. Many optional features are available on this car.
  3. Registration is optional, not mandatory.

First Known Use of OPTIONAL

OPTIONALLY Defined for Kids


adjective op·tion·al \ˈäp-shə-nəl\

Definition of OPTIONAL for Kids

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


Next Word in the Dictionary: optionalizePrevious Word in the Dictionary: option (verb)All Words Near: optional
July 03, 2015
interpellate Hear it
to formally question a public official
Take a 3-minute break and test your skills!
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears