fastidiumrare.|fæˈstɪdɪəm| [a. L. fastīdium; see fastidie.] Disgust; ‘ennui’. a1734North Lives I. 159 The fastidium, upon this occasion contracted..diverted his mind from..such projects.1885Mrs. H. Ward tr.Amiel's Jrnl. (1889) 277 How is fastidium to be avoided?