a. [f. CATASTROPHE + -AL.] Of the nature of a catastrophe; disastrous.
1842. G. P. Scrope, Volcanos, 6. The great catastrophal earthquake of Riobamba.
1882. Daily News, 6 Feb., 5/3. Mr. Proctor, after his catastrophal forebodings, must not be surprised to find himself at variance with a rival prophet—no less than Nostradamus himself.
