bad 含义广泛，指任何不好的或不合需要的品质。
evil 语气比bad强，强调道德上的邪恶不良，含狡猾凶险或危害他人的意味。
ill 与evil意义接近，但语气弱一些，常指道德或性质方面的不良。
poor 普通用词，侧重指事物的质量或数量低于标准或不合要求。用于指天气与食品时可与bad通用。
wicked 语气比evil强，指居心叵测，任意违反道德标准，有意作恶。
参考例句
1. Moral is not exist in the nature world my friend and you are wicked person. 道德在自然世界中是不存在的我的朋友，你是一个道德败坏的人。
2. "The old peddler woman was really the wicked queen, " said the dwarfs to Snow White. 小矮人们对白雪公主说：“那叫卖的老太婆其实就是那邪恶的皇后。
3. Wicked women bother one; good women, bore one; that is the only difference between them. 坏女人令人烦恼，好女人令人烦厌，这就是她们之间的惟一区别。
英英解释
adj.
1. morally bad in principle or practice
2. having committed unrighteous acts
3. intensely or extremely bad or unpleasant in degree or quality
4. naughtily or annoyingly playful
5. highly offensive; arousing aversion or disgust
