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Necessary evil
01
an unpleasant thing that requires acceptance in order for a certain thing to be achieved
Idiom
Informal
What is the origin of the idiom "necessary evil" and when to use it?
The idiom "necessary evil" has its origins dating back to the early 16th century in the English language. It is used to describe something that is undesirable, unpleasant, or morally objectionable but is required in a given situation.
Examples
Many people see paying taxes as a necessary evil to fund essential public services.
