ENGLISH DICTIONARY

Optional

Definition, Meaning & Examples

Pronunciation /ˈɒp.ʃə.nəl/ · Part of speech adjective

Quick meaning: Optional is an adjective meaning Not compulsory; left to personal choice; elective.

Meaning

Not compulsory; left to personal choice; elective.

More Meanings

  1. Something that is not compulsory, especially part of an academic course.
  2. (programming, sometimes capitalized) In various programming languages, a kind of variable that is assigned a specific data type but may or may not hold an actual value.

Example Sentences

On that beach clothing is entirely optional.
In functional languages, there is a data type called the option type, also called the maybe type. Its purpose is to encapsulate a value, which is returned from a function. […] In Java 8, the Optional class has been added to serve as an option type.
Do you need to wear eyeliner? As with any makeup step, eyeliner is completely optional. From an artistic perspective, if you are wearing eyeshadow, I almost always recommend wearing eyeliner, unless your eyelids and eyelashes are obscured by the eyebrow area. Eyeliner is a basic part of an eye-makeup design because it shapes and defines the eyes and makes the eyelashes look thicker.

Word Forms

Synonyms for optional

Depending on context, synonyms include discretionary, elective, facultative, free, noncompulsory, nonmandatory.

Antonyms for optional

Common opposites include non-optional, compulsory, mandatory, obligate, obligatory, required.

Related Words

Related dictionary entries include elective, facultative, nonobligatory, nonmandatory, choice, option.

Related Dictionary Tools

Sources & Attribution

FreeDictionaryAPI.com / Wiktionary · Original source · CC BY-SA 4.0

Dictionary data is provided by FreeDictionaryAPI.com and sourced from Wiktionary under its stated license.