cataclysmal

Fortunately, the approaching explosion, which would have been of a cataclysmal nature,—Stiffy was not a boy to do things by halves,—was averted by a change of demeanour on the part of the temptress.

Lyall in England had shown that geological formations were evolutionary rather than cataclysmal.

Somehow I could not bring myself to think of my relation to him as involving cataclysmal changes.

It is, in fact, nothing but one cataclysmal bang and shriek of shells and shrapnel.

This is a change for us from the silence, this cataclysmal music, and it contributes to our walk a different kind of sadness, another form of horror.