antiphrases

/ˈæntɪˌfreɪsɪz/
noun
  1. The use of a word or phrase in a way that is opposite to its usual meaning, often for humorous or ironic effect.
    • When she called the messy room 'spotless,' she was using antiphrases to make a joke.
    • His comment 'What a brilliant idea' was clearly antiphrases, since the plan was terrible.
    • In literature, antiphrases can add a layer of sarcasm that makes the reader think twice.
What does "antiphrases" mean? | whatsthatwordmean | whatsthatwordmean