随机
suí jī · HSK 7
random
🎲 随 = follow + 机 = opportunity/chance, so following whatever chance gives you = random
随 means follow/accord-with and 机 means opportunity or machine. Following the chance of the moment gives the sense of acting on the situation, hence random or pragmatic.
随 — 辶 (walk) + 阝 (mound) + 有 phonetic
随 combines the walk radical 辶 with a phonetic component derived from 隋. The original sense is 'to follow along a path,' from the walking radical suggesting movement after someone. Over time it broadened to mean 'follow,' 'accompany,' or 'comply with.'