optional

adjective

op·​tion·​al ˈäp-sh(ə-)nəl How to pronounce optional (audio)
: involving an option : not compulsory
optionality noun
optionally adverb

Examples of optional in a Sentence

Jackets are required at the restaurant, but ties are optional. Many optional features are available on this car. Registration is optional, not mandatory.
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The board agreed and voted unanimously to make the class optional this coming schoolyear instead of mandatory. Marsha Sutton, San Diego Union-Tribune, 7 Mar. 2025 The new Certificate of Need process would shorten many of those time frames, with the period to determine the completion of applications shrinking from 30 to just three days followed by decision deadlines cut in half and public hearings made optional, according to a release from Anwar. Livi Stanford, Hartford Courant, 7 Mar. 2025 Photo : Darin Schnabel, courtesy of RM Sotheby's The interior is evocative of a bygone era where toggle switches were standard and seat belts were optional. Robert Ross, Robb Report, 7 Mar. 2025 An optional magnetic-release clasp can then be hung from the T6, with a keyring in turn hanging from the bottom of that clasp. Ben Coxworth, New Atlas, 5 Mar. 2025 See All Example Sentences for optional

Word History

First Known Use

1765, in the meaning defined above

Time Traveler
The first known use of optional was in 1765

Browse Nearby Words

Cite this Entry

“Optional.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/optional. Accessed 12 Mar. 2025.

Kids Definition

optional

adjective
op·​tion·​al ˈäp-shnəl How to pronounce optional (audio)
-shən-ᵊl
: left to one's choice : not required
optional equipment on a new car
optionally
adverb

More from Merriam-Webster on optional

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!