derring do

/ˌdɛrɪŋˈduː/
noun
  1. Brave, daring action or adventure, often in a heroic or exciting way.
    • She showed great derring-do when she rescued the kitten from the burning building.
    • The movie is full of derring-do, with car chases and narrow escapes.
    • The knight was famous for his acts of derring-do on the battlefield.
Antonyms
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