1.
natural disaster; cataclysm
Major natural disasters or extraordinary natural phenomena, such as earthquakes, volcanic eruptions, floods, or extreme weather events.
2.
extraordinary upheaval
Figuratively, any major unexpected change or upheaval that dramatically affects the situation.
FOUR-CHARACTER IDIOM (四字熟語):
天変 (unusual phenomena in the sky/heaven) + 地異 (unusual phenomena on earth)
Etymology
Cultural note
Japan experiences frequent natural disasters including earthquakes, typhoons, and volcanic eruptions, making this term particularly relevant in Japanese society.
Common collocations
Related words
Related Words
Related:
異常気象 (abnormal weather)
Related:
自然災害 (natural disaster)
Related:
大災害 (major disaster)
Compare:
自然現象 (natural phenomenon)