independent: 不依靠的，独立的(of)。如：John was independent of his parents when he was still a child.
dependent: 依赖的，依靠的(on, upon)。如：Success is dependent on your hard work.
这组词都有“轻视，蔑视”的意思，其区别是：
scorn: 语气较强，指极端的蔑视，常伴有愤怒或恼怒的情感。
look down upon: 指自视地位优越而蔑视他人或事。
despise: 指由于卑鄙、软弱，渺小或无价值等而被轻视。