backtracking

noun
  1. the act of retracing one’s steps or returning along the same path
  2. the act of reversing or abandoning a previous position, decision, or statement
  3. a problem-solving method that involves trying different solutions and undoing them if they don’t work
  4. Usage: computing; mathematics
verb
  1. present participle of backtrack: to retrace one’s steps or reverse a previous decision

Examples