A deviation from the norm or standard, often implying a problem or issue.

Irregular behavior or actions that are not conforming to accepted standards.

अनियमितता

English Usage: His irregularities in attendance caused concern among his teachers.

Hindi Usage: उनकी उपस्थिति में अनियमितताएँ उनके शिक्षकों में चिंता का कारण बनीं।