onontbeerlijk (bn):
unentbehrlich(en) of high importance.
(en) necessary.
(en) absolutely necessary., unverzichtbar(en) necessary.
(en) of high importance.
(en) absolutely necessary., essenziell(en) of high importance.
(en) necessary., notwendig(en) necessary.
(en) of high importance., wesentlich(en) necessary.
(en) of high importance., unabdingbar(en) absolutely necessary., unabkömmlich(en) absolutely necessary., unerlässlich(en) absolutely necessary.
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Via: Memodata.com