1.
eventful, turbulent, full of ups and downs
A four-character idiom describing a life or story full of dramatic changes, difficulties, and unexpected events.
FOUR-CHARACTER IDIOM (四字熟語)
Literal meaning: 波乱 (turbulence, upheaval) + 万丈 (ten thousand 丈 - an extremely high measure) = Waves of turbulence as high as mountains.
Forms
Common collocations
Nuance: Often used with a somewhat positive connotation, suggesting a life that was interesting and full of experiences, even if difficult. Frequently used for biographies, autobiographies, and dramatic narratives.
Related idiom: 波瀾万丈 is an alternative spelling using 瀾 instead of 乱.