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English definition of “unnecessary”

unnecessary

adjective    /ʌnˈnes·əˌseər·i/
not needed or wanted , or more than is needed or wanted : unnecessary expenses The key to successful investing is to avoid taking unnecessary risks . unnecessarily    /ʌnˌnes·əˈser·ə·li/ adverb I thought his explanation was unnecessarily complex .
(Definition of unnecessary adjective from the Cambridge Academic Content Dictionary © Cambridge University Press)
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