Despite the rise in technostress research, two significant gaps have been overlooked. First, although studies on stress proposed curvilinear relationships, such interactions have rarely been examined in the technostress literature. Second, despite stress being multi-disciplinary and theoretically related to emotions, past technostress studies have rarely adopted transdisciplinary approaches. This paper aims to address these knowledge gaps by adopting the triphasic stress model, the appraisal theory of emotions, and the activation theory to investigate and explain the presence of curvilinear relationships within a mediated and moderated model. Data were collected and analyzed by surveying 215 employees from four different medium-sized US organizations. Our findings suggest that antecedents such as ICT-self-efficacy and presenteeism significantly relate to technostressors through cubic S-shaped interactions, while technostressors exhibit a quadratic U-shaped relation with technoexhaustion, whereas technoexhaustion shows a positive linear relationship with discontinuous usage intention. Furthermore, our results partially support the moderating influence of negative affectivity and mediation effects of technoexhaustion. Through this study, we offer a different theoretical perspective and an innovative understanding of the true nature of the technology and stressors. It also offers insights on designing effective organizational ICT tools.