not essential, or more than is essentialThe slaughter of whales is unnecessary and inhuman.
Our families thought I was taking a needless risk.
unwarranted, , ,
an unwarranted interference in the country's internal affairs
the conversion of redundant buildings to residential use
The film has been criticized for its gratuitous violence.
My presence at the afternoon's proceedings was superflous.
the unnecessary and wanton destruction of our environment
Once we're of no more use to them, we're expendable.
surplus to requirements,
Leo's uncalled-for remarks about her cousin
Those people are dispensable.
We judged footnotes inessential to the text.
to no purpose,
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in the sense of dispensable
not essentialThose people are dispensable.
in the sense of expendable
able to be sacrificed to achieve an objective, esp. a military oneOnce we're of no more use to them, we're expendable.
Video: pronunciation of 'unnecessary'
unnecessary 的词库—— 柯林斯 英语词库
Life on the edge