天てん変ぺん地ち異い説せつMeaningsNoun1. catastrophismKanji used天heaven変change地ground異different説theoryPitch accentてんぺんちいせつComposed of天てん変ぺん地ち異いnatural disaster; cataclysmNoun説せつtheory; doctrine; opinion; view; rumour; rumor; gossip; hearsayNoun