Incivilities are words and actions that may be perceived as impolite. This article reports a study of perceptions of and experiences with incivilities during group activities in English class. Participants were 119 students at a women's university in Japan. They completed the Pair/Groupwork Incivility Scale, a Japanese-language instrument, which asked participants to rate 17 behaviors as to how uncivil the behaviors are and how frequently they had experienced the behaviors. The results suggested that the average severity of uncivil behaviors was significantly negatively correlated with the reported average frequency of these uncivil behaviors. Limitations of the current study and suggestions for future research are discussed.