a. [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.
