任意
rènyì · HSK 7
at will
🎲 任 = let/allow + 意 = will/intention → let your will = at will, arbitrarily
任 carries the sense of let or permit; 意 means will or intention. Together: letting intention run free, so anything goes — willfully, at will. A dice roll lands arbitrarily, matching rènyì.
任 — person radical 亻 + 壬 (phonetic)
任 combines the person radical 亻 with 壬, which supplies the sound. The original sense centered on a person bearing a load or burden, which extended naturally to 'carrying responsibility,' 'duty,' and 'to appoint someone to a post.' Modern uses like 任务 (task) and 责任 (responsibility) preserve this core idea.