noun which may take the genitive case particle 'no', na-adjective, noun
stormy and full of drama; full of ups and downs
Describes a life, career, or story marked by dramatic changes, hardships, and reversals. Often used in set phrases like 波瀾万丈の人生.
His life was truly full of ups and downs.
I was drawn into the stormy and dramatic story.
He has lived a life full of dramatic ups and downs.
That actor was someone who lived a turbulent, eventful life.
This novel is a story full of dramatic twists that keeps readers hooked to the end.
平穏無事 describes a calm, uneventful life, the direct opposite of the turbulent ups and downs described by 波瀾万丈.
波乱 just means 'trouble' or 'disturbance' in general, whereas 波瀾万丈 is the fuller idiom emphasizing an entire life or career full of dramatic reversals.