Irregularly

She took her medication irregularly, leading to a worsening of her condition.

The employee came to work irregularly, causing his boss to become angry.

The dog barked irregularly, causing the neighbors to complain.

The city's power supply was irregularly disrupted due to the storm.

The factory produced goods irregularly, causing delays in delivery.

The athlete trained irregularly, which hindered his performance in competitions.

The musician played the piano irregularly, making it difficult for his bandmates to keep time.