The word "unchristian" is an adjective that describes something that is not in line with the teachings, values, or principles of Christianity. It can refer to actions, behaviors, or beliefs that do not match what many Christians consider good or right.
In more complex discussions, "unchristian" can be used in a broader sense to critique behaviors in society or politics that contradict Christian ethics. For instance: - "The unchristian attitudes towards the poor reflect a lack of compassion."
While "unchristian" primarily refers to actions or beliefs outside of Christianity, it can also sometimes be used to describe general immorality or unethical behavior, even if the context is not explicitly religious.
There are no specific idioms or phrasal verbs that use "unchristian," but you might encounter phrases that discuss "Christian values" or "Christian ethics" when discussing the opposite of "unchristian."
In summary, "unchristian" is used to describe actions or attitudes that do not align with Christian beliefs.