随分
ずいぶん very; extremely
Why it means this
随 (according to) + 分 (one's lot) — 'according to one's station'; the meaning drifted to 'considerably, very' (随分久しぶり; 随分ひどい). Also 'That's a bit much!'.
Breakdown
Each character links to its full entry — origin story, stroke order, and readings.