irregular/Iˋrɛgjəlɚ; Iˈreɡjələ or Iˈreɡjʊlə/adj 1 not happening at regular times〔时间〕不规律的﹔不按时的﹐不定时的: an irregular heartbeat 不规律的心跳He returned to Britain at irregular intervals . 他不定期地回英国。2 an irregular shape or surface is not smooth, even, or straight〔形状〕不规则的﹔〔表面〕不平整的3 not following the usual rules in grammar 不符合语法规则的: irregular verbs 不规则动词4 formal not obeying legal or moral rules【正式】不合法的﹔不符合道德规范的: financially irregular practices 财务上不合法的做法 —irregularly adv —irregularity /I͵rɛgjəˋlærətI; Iˌreɡjəˈlærəti or IˌreɡjʊˈlærIti/n [C,U]