obligatory

adj.

1. Morally or legally constraining; binding.
2. Imposing or recording an obligation: a bill obligatory.
3. Of the nature of an obligation; compulsory: Attendance is obligatory. Mathematics is an obligatory course.
4. Biology. Obligate.

obligatorily o·blig'a·to'ri·ly adv.

adjective

Imposed on one by authority, command, or convention: compulsory, imperative, mandatory, necessary, required, requisite. See obligation.

adj

Definition: essential, required
Antonyms: nonessential, optional, unrequired, voluntary

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Unavoidable; something that is bound to occur.

• o. water diuresis — polyuria resulting from a decrease or inactivity of antidiuretic hormone on distal tubules and collecting ducts.

IN BRIEF: Not to be ignored. Also: Required.

It was made obligatory to take off one's shoes before entering.

Dansk (Danish)
adj. - tvungen, obligatorisk

Nederlands (Dutch)
verplichtend, verplicht, bindend

Français (French)
adj. - obligatoire, de rigueur

Deutsch (German)
adj. - obligatorisch, Pflicht-

Ελληνική (Greek)
adj. - υποχρεωτικός, δεσμευτικός

Italiano (Italian)
obbligatorio, impegnativo

Português (Portuguese)
adj. - obrigatório

Русский (Russian)
обязательный

Español (Spanish)
adj. - obligatorio, de rigor

Svenska (Swedish)
adj. - obligatorisk, bindande, förpliktande

中文（简体）(Chinese (Simplified))
义不容辞的, 必须的, 义务的

中文（繁體）(Chinese (Traditional))
adj. - 義不容辭的, 必須的, 義務的

한국어 (Korean)
adj. - 의무가 있는, 필수의

日本語 (Japanese)
adj. - 義務のある, 必修の, 義務的な

العربيه (Arabic)
‏(صفه) إلزامي, إجباري‏

עברית (Hebrew)
adj. - ‮מחייב, הכרחי, כובל, חובה‬

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