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English definition of “unnecessary”

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unnecessary

adjective uk   /ʌnˈnes.ə.ser.i/ us  
B1 not needed or wanted, or more than is needed or wanted: I found a lot of the violence in the film totally unnecessary. The idea is to kill the animal as quickly as possible without causing unnecessary suffering. An offensive remark or action that is unnecessary could have been avoided: He just humiliated her in front of everyone - it was so unnecessary.
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unnecessarily
adverb uk   /-ɪ.li/ us  
C1 Of course we don't want to alarm people unnecessarily, but they should be alerted to potential dangers.
(Definition of unnecessary from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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