Single-Word Requests – Term for Opposite Effect Action

single-word-requests

Is there a word or phrase to express the concept of an action having the opposite effect of the expected outcome?

For example, a drug taken to cure headaches that actually causes headaches, or an advertising campaign designed to deter smoking that leads to an increase in smoking.

Best Answer

A common idiom expressing this concept is "to backfire". For example:

  • The campaign to reduce smoking backfired.
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