The word "turpidly" means in a morally depraved or wicked manner. Some synonyms for this word include "immorally," "sinfully," "depravedly," "corruptly," and "viciously." Other similar words that can be used in place of "turpidly" include "sordidly," "disgracefully," "infamously," and "shamefully." These synonyms can be used to describe someone's behavior or actions that are considered immoral or unethical. It is important to choose the right synonym based on the context of the sentence and the tone of the writing, as each word carries a slightly different connotation and level of severity.