cataclysmic, a.
(kætəˈklɪzmɪk)
[f. cataclysm + -ic. Cf. F. cataclysmique.]
Of, pertaining to, or of the nature of, a cataclysm.
| 1851 Kingsley Yeast Epil., What if the method whereon things have proceeded since the Creation were..a cataclysmic method? 1879 Le Conte Elem. Geol. 551 The old geologists regarded these changes..as sudden and cataclysmic. |