Noah Webster's Dictionary 1. (a.) Suffering calamity; wretched; miserable. 2. (a.) Producing, or attended with distress and misery; making wretched; wretched; unhappy.

Multi-Version Concordance Calamitous (1 Occurrence) Psalms 91:3 For He delivereth thee from the snare of a fowler, From a calamitous pestilence. (YLT)