indispensable: Definition, Synonyms and Much More from Answers.com

adj.

1. Not to be dispensed with; essential.
2. Obligatory; unavoidable: the routine but indispensable ceremonies of state.

n.

One that is indispensable.

indispensability in'dis·pens'a·bil'i·ty or in'dis·pens'a·ble·ness n.
indispensably in'dis·pens'a·bly adv.

SYNONYMS  indispensable, essential, necessary, needful, requisite. These adjectives indicate a pressing need: foods indispensable to good nutrition; funds essential to completing the project; necessary tools and materials; provided them with all things needful; lacking the requisite qualifications.

Dansk (Danish)
adj. - uundværlig, ufravigelig
n. - uundværlighed

Nederlands (Dutch)
onontbeerlijk, onmisbaar, absoluut nodig

Français (French)
adj. - indispensable, de première nécessité, obligatoire
n. - personne indispensable

Deutsch (German)
adj. - unentbehrlich
n. - jmd. od. etwas Unentbehrliches

Ελληνική (Greek)
adj. - απαραίτητος, αναγκαίος, ουσιώδης
n. - απαραίτητο

Italiano (Italian)
indispensabile

Português (Portuguese)
adj. - indispensável
n. - pessoa (f) ou coisa (f) indispensável

Русский (Russian)
необходимый, не допускающий исключений

Español (Spanish)
adj. - indispensable, imprescindible, forzoso
n. - persona o cosa imprescindible

Svenska (Swedish)
adj. - oumbärlig, oundgänglig, oeftergivlig
n. - oumbärlig sak

中文（简体） (Chinese (Simplified))
不可缺少的, 绝对必要的, 不能避免的, 不可缺少之物

中文（繁體） (Chinese (Traditional))
adj. - 不可缺少的, 絕對必要的, 不能避免的
n. - 不可缺少之物

한국어 (Korean)
adj. - 불가결의, 절대 필요한, 게을리 할 수 없는
n. - 필수불가결한 사람[것]

日本語 (Japanese)
adj. - 必須の, 欠くことのできない

العربيه (Arabic)
‏(صفه) لا يستغنى عنه‏

עברית (Hebrew)
adj. - ‮חיוני, הכרחי‬
n. - ‮אדם או דבר חיוניים‬

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