optional

op·tion·al  (psh-nl)

adj.

Left to choice; not compulsory or automatic.

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option·al·ly adv.

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optional [ˈɒpʃən^əl]

adj

possible but not compulsory; left to personal choice

optionally  adv

Thesaurus

Adj.

1.

optional - possible but not necessary; left to personal choice obligatory - morally or legally constraining or binding; "attendance is obligatory"; "an obligatory contribution"

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optional

adjective voluntary, open, discretionary, possible, extra, elective, up to the individual, noncompulsory Some people feel sex education should remain an optional school subject.
required, compulsory, mandatory, obligatory, de rigueur (French)

Translations

optional [ˈɒpʃənl] ADJ [course, subject] → optativo, facultativo; [part, accessory] → opcional
that is completely optional → eso es completamente opcional
optional extra (Aut) → accesorio m opcional, extra m
"dress optional" → no se requiere(ir de)etiqueta

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optional [ˈɒpʃ^ənəl] adj

[course, subject] → optionnel(le)

[feature, extra] → en option
optional extras → accessoires mpl en option, options fpl
options market n → marché m des options

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optional

adj (= not compulsory) → freiwillig; (= not basic) trim, mirror etc → auf Wunsch erhältlich; “evening dress optional” → „Abendkleidung nicht Vorschrift“; “fancy dress optional” → „kein Kostümzwang“; optional extras → Extras pl; the cigar lighter is an optional extra → der Zigarettenanzünder wird auf Wunsch eingebaut; optional subject (Sch, Univ) → Wahlfach nt

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optional [ˈɒpʃənl] adj (course, subject, ingredient) → facoltativo/a
optional extra (Comm) → optional m inv

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optional → اختياري volitelný valgfri freiwillig προαιρετικός opcional valinnainen optionnel neobavezan facoltativo 自由選択の 자유선택의 optioneel valgfri opcjonalny opcional необязательный valfri ซึ่งเป็นทางเลือก isteğe bağlı tuỳ chọn 可选择的