Risky (adjective)

  1. Involving a level of danger or chance of failure.
  2. Involving a chance of loss or injury.
  3. Likely to result in a negative outcome.
  4. Uncertain as to outcome.

Origin:

Late 19th century: from risk + -y.

Examples:

  1. The investment was risky.
  2. The plan was too risky to implement.
  3. The situation was risky.
  4. The stock market is a risky business.
  5. The operation was risky but successful.
Some random words: purist, financial, fistula