1. 13 synonyms for Apocalyptical: apocalyptic, baneful, dire, direful, fateful, fire-and

2. Causing fear or dread or terror; "the Awful war"; "an Awful risk"; "dire news"; "a career or vengeance so direful that London was shocked"; "the dread presence of the headmaster"; "polio is no longer the dreaded disease it once was"; "a dreadful storm"; "a fearful howling"; "horrendous explosions shook the city"; "a terrible curse"