noun, noun or participle which takes 'suru', intransitive verb, noun which may take the genitive case particle 'no'
ever-changing; kaleidoscopic; innumerable changes
yojijukugo (four-character idiom)
Describes something that undergoes constant, dramatic, and unpredictable changes. Often used for scenery, situations, or emotions. A yojijukugo with a literary feel.