胡乱 (hú luàn) means 'carelessly, recklessly, at random' — it describes doing something in a disorderly or thoughtless way, often with a negative connotation. Unlike 任意 (rèn yì 'arbitrarily, as one pleases'), which emphasizes acting according to one's own will, 胡乱 focuses on the lack of order or care. It is also distinct from 轻易 (qīng yì 'rashly, easily'), which often appears in negative constructions and implies doing something too readily.