optional

[ op-shuh-nl ]

adjective

1. left to one's choice; not required or mandatory:

   Formal dress is optional.

   Synonyms: voluntary, elective, discretional

2. leaving something to choice.

optional

/ ˈɒpʃənəl /

adjective

1. possible but not compulsory; left to personal choice

Derived Forms

• ˈoptionally, adverb

Other Words From

• option·ali·ty noun
• option·al·ly adverb
• non·option·al adjective
• non·option·al·ly adverb
• un·option·al adjective
• un·option·al·ly adverb

Word History and Origins

Origin of optional¹

First recorded in 1755–65; option + -al ¹

Example Sentences

"School is not optional. Every child has the right to access quality education and parents have a legal duty to ensure regular attendance."

From BBC

Adding a payment method on the app beforehand is optional.

From Los Angeles Times

Those who choose not to purchase the optional flood insurance package will be on the hook for water damage.

From Salon

However, the scheme is optional will not be part of the national curriculum.

From BBC

The closest the federal agency came to meeting the requirements were optional, unenforceable measures that the court deemed insufficient.

From Los Angeles Times