cataclysmal

listen to the pronunciation of cataclysmal
İngilizce - Türkçe
tufana ait
müthiş
İngilizce - İngilizce
As destructive as a cataclysm

That they have been exterminated by exceptional cataclysmal changes of the earth's surface has not been proved.

Of or pertaining to a cataclysm
{s} disastrous, catastrophic, dreadful; pertaining to a natural disaster
severely destructive; "cataclysmic nuclear war"; "a cataclysmic earthquake
cataclysmal