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unnecessary

un·nec·es·sar·y

unnecessary

 
 
pronunciation:
uhn ne s seI ri
part of speech: adjective
definition: not required or essential; needless.
It's unnecessary to buy a new one if there's nothing wrong with the old one.The more expensive models have unnecessary features.
synonyms:
inessential, needless, superfluous, unessential, unneeded
antonyms:
essential, necessary
similar words:
dispensable, expendable, extraneous, nonessential, otiose, supernumerary, surplus
derivation: unnecessarily (adv.)