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needless

adjective
     
need‧less
1

needless to say

used when you are telling someone something that they probably know or expect:
Needless to say, any contributions of money will be gratefully received.
2 needless troubles, suffering, loss etc are unnecessary because they could easily have been avoided [= unnecessary]:
The report caused needless anxiety to women who have attended the clinic.
We need to bring to an end these needless deaths.
Charles hates needless waste.
needlessly adverb:
People are dying needlessly every year of heart attacks.

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