will have blundered

• future perfect

  future perfect

  Used to describe an action that will be fully completed or achieved by a specific point in the future.

  of blunder.
  blunder

  noun

  a gross, stupid, or careless mistake.

Related Words

• blooper
• error
• fault
• gaffe
• goof
• inaccuracy
• indiscretion
• lapse
• oversight