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English definition of “optional”

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optional

adjective [not gradable]  /ˈɑp·ʃə·nəl/ us  
not necessary or demanded but possible or available; depending on what you decide to do: I think military service should be completely optional.
Translations of “optional”
in Korean 선택적인…
in Arabic اِخْتياري…
in Portuguese opcional…
in Catalan opcional…
in Japanese 任意の, 選択の…
in Italian facoltativo…
in Chinese (Traditional) 可選擇的, 非強制的…
in Russian необязательный, факультативный…
in Turkish tercihli, isteğe bağlı, ihtiyari…
in Chinese (Simplified) 可选择的, 非强制的…
in Polish dodatkowy, dobrowolny…
(Definition of optional from the Cambridge Academic Content Dictionary © Cambridge University Press)
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