Meaning of unforced error in English:

unforced error

noun

  • 1(in sport, especially tennis) a mistake in play that is attributed to one's own failure rather than to the skill or effort of one's opponent.

    • ‘she made 88 unforced errors, including a double fault on match point’
    1. 1.1A careless or foolish mistake.
      • ‘how can he portray himself as a leader-in-waiting when he makes that sort of unforced error?’