突如異変

とつじょいへん

noun

•

sudden and dramatic event (incident), sudden and strange phenomenon(yojijukugo)

突	stab, protruding, thrust, pierce, prick, collision, sudden
如	likeness, like, such as, as if, better, best, equal
異	uncommon, different, queerness, strangeness, wonderful, curious, unusual
変	unusual, change, strange