antithesis

/ænˈtɪθəsɪs/
noun
  1. The exact opposite of something or someone.
    • In the story, the hero is the antithesis of the villain.
    • His calm personality is the antithesis of his brother's fiery temper.
    • The new policy was the antithesis of everything the company had stood for.
  2. A contrast or opposition between two things, often used in writing or speech for effect.
    • The speech used the antithesis of 'we shall fight on the beaches' to inspire courage.
    • The poet often employed antithesis to highlight the differences between love and hate.
    • Her essay explored the antithesis between freedom and security.
Antonyms
What does "antithesis" mean? | whatsthatwordmean | whatsthatwordmean