irregularir·reg·u·lar /ɪˈregjələ-ər/ adjectiveadj not obeying the usually accepted legal or moral rulesThere were some warning signals that something irregular was going on.
highly irregular trading activities
—irregularity noun [countableC, uncountableU]A customer’s call alerted a bank clerk to accounting irregularities.
In the legal profession, the smallest hint of irregularity cannot pass unnoticed.