Calamity [ kuh-lam-i-tee ] noun, plural ca·lam·i·ties. a great misfortune or disaster, as a flood or serious injury. In which a sarcastic redhead who hates drama, starts in a school that dosen't have anything else. Degrassi: the next generation. From season 1 (OCxDifferent people) (mostly J.T.) (Started: 17/3-2020) (Ended: ?)