need·less
adjective/ˈniːdləs/
/ˈniːdləs/
Idioms - (of something bad) not necessary; that could be avoided
不必要的；可避免的 - needless suffering
不必要的痛苦 - Banning smoking would save needless deaths.
禁止吸烟会避免不必要的死亡。 - The report caused needless anxiety to hundreds of women.
报告引起了数百名妇女不必要的焦虑。
Oxford Collocations DictionaryNeedless is used with these nouns:- anxiety
- death
- suffering
- …
- needless suffering
Idioms
needless to say
- used to emphasize that the information you are giving is obvious
不必说；不用说 - The problem, needless to say, is the cost involved.
不用说，问题是所涉及的费用。
- The problem, needless to say, is the cost involved.