eventful; full of incidents; hectic
A yojijukugo describing a situation or period that is busy, eventful, or filled with various matters. Often used in formal or written contexts.
This year was an eventful one.
Please take care of yourself during this busy time.
A yojijukugo composed of 多事 (many events) and 多端 (many matters), both meaning 'many things happening', reinforcing the idea of busyness and eventfulness.