Cullion is a pejorative term that has been used to refer to someone who is contemptible or a worthless fellow. There are several synonyms for the word cullion that can be used to express this same or similar meaning. Some of the words that can be used as synonyms for cullion include lout, rascal, scamp, rogue, knave, cad, scoundrel, miscreant, and villain. Each of these words carries different nuances of meaning, but they are all used to describe someone who is considered to be morally or socially unacceptable. It is essential to be careful about using such degrading words, as they can be hurtful and damaging to people's self-esteem and reputations.