optional

adjective

op·​tion·​al ˈäp-sh(ə-)nəl How to pronounce optional (audio)
Synonyms of optionalnext
: 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.
Most of the survey questions were optional. Maura Fox, San Diego Union-Tribune, 9 May 2026 The language on the website isn’t clear whether the open-carry rollback is just a request, and optional, or is a firm store rule, like the one banning dogs inside stores. Michael Butler, Miami Herald, 8 May 2026 There's also an optional co-op mode, which allows two players to split the controls of the Arwing starfighter and other vehicles; one person pilots them while the other shoots at enemies. Fran Ruiz, Space.com, 8 May 2026 Dinner unfolds as a six-course tasting menu ($125 per person; wine pairings optional) served Friday and Saturday evenings by reservation only, with ingredients foraged onsite or sourced from nearby farms. Taryn Shorr-McKee, Midwest Living, 8 May 2026 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 13 May. 2026.

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

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