Self-justifying is often used to describe actions or arguments that justify themselves without any external validation. Some synonyms for this term include self-rationalizing, self-vindicating, self-excusing, self-exonerating, and self-validating. All these words essentially describe the same idea; an individual or action that appears to have an innate ability to validate itself and avoid criticism from outsiders. Synonyms like self-validating and self-exonerating suggest a positive connotation, while others like self-rationalizing may imply a level of denial or delusion. Regardless of the synonym used, it is clear that a self-justifying individual can be challenging to argue against, as they have already created their own justification for their actions or beliefs.