Experiencing incivility in the workplace is common and unpleasant. It is also subjective, what individuals see as rude or harmful differs from person to person. Despite the fascination and the considerable interest shown in investigating incivility, there are some criticisms regarding how the construct is defined and measured. There are concerns that one of the most common measurement instruments used to assess workplace incivility (the WIS-R, Cortina et al., 2013) may not be identifying uncivil behaviors (in particular), but rather employee appraisals of various forms of interpersonal mistreatment. This study aims to aid the understanding of workplace incivility by exploring individual perceptions, experiences, and affective reactions to experiencing uncivil behaviors using Critical Incident Technique. Data were collected from 115 respondents who provided accounts of incidents involving incivility they had experienced in their workplace. Content analysis of the incivility incidents revealed a number of antecedents to experiences of incivility in the form of sources (e.g., coworkers, manager, customers) and discrete emotional reactions (e.g., anger, contempt, embarrassment, disgust). This qualitative analysis of incivility incidents in the workplace enhances our understanding of various types of behaviors that may be perceived as uncivil and provides insight into the different affective reactions that experiencing incivility provokes. As such, it can provide a baseline for future innovative research into this type of workplace mistreatment and its measurement.