Streaky

Adjective

1. Having streaks.
2. Used to describe a shot where the ball deflects off the edge of the bat, but is not caught by the slips or wicket-keeper and instead results in runs for the batsman.
3. Unpredictable, variable; having periods of good and bad (e.g. weather).
4. Having alternating periods of good and bad performances; inconsistent.

   "Jones has always been a streaky hitter"

5. Having periods of irritation or bad temper.