Definition of optional in English:

optional

Line breaks: op|tion¦al
Pronunciation: /ˈɒpʃ(ə)n(ə)l
 
/

adjective

Available to be chosen but not obligatory: a wide range of optional excursions is offered
More example sentences
  • An optional carry case is available which features an armband strap.
  • Schooling is compulsory and free for the first nine years and optional and free for the next three.
  • He feels that Sanskrit could be introduced as one of the optional languages in schools and colleges.
Synonyms
voluntary, non-compulsory, at one's discretion, discretionary, not required, up to the individual, elective, non-mandatory, free, open, unforced;
Law permissive

Derivatives

optionality

Pronunciation: /-ˈnalɪti/
noun

optionally

adverb
More example sentences
  • Users can optionally add extra keywords, or tags, to messages.
  • If these effects are not judged to be sufficiently powerful, then the player may optionally move on to Emergency Stage Two.
  • The unused pieces of polenta can be cut in cubes, optionally sautéed, and simply added to a stew, a stir-fry or a soup.

Definition of optional in: