also: びょうしんふんほ
noun
rapid progress; minute-by-minute progress
Describes steady, noticeable advancement in very short intervals; often used in contexts like technology, skill improvement, or project development.
彼の技術は秒進分歩で向上している。
His skills are improving by leaps and bounds.
AIの進化はまさに秒進分歩だ。
The evolution of AI is truly rapid, advancing every minute.
日進月歩 means steady progress day by day and month by month, while 秒進分歩 emphasizes even faster, minute-by-minute advancement.
A four-character compound (四字熟語) combining 秒 (second), 進 (advance), 分 (minute), and 歩 (step/walk), literally 'second advance, minute step', conveying progress in extremely short time frames. The exact origin is uncertain, but it follows the pattern of similar compounds like 日進月歩.