The word "un-warrantable" is used to describe something that is not justifiable or cannot be justified by legitimate means. Some antonyms for this word include "justifiable," "warranted," "lawful," "permissible," and "reasonable." These terms are used to describe situations, actions, or decisions that are supported by valid reasons, facts, or evidence. They imply that the subject matter is valid, acceptable, or consistent with the established norms or standards. Using antonyms for "un-warrantable" helps to convey a positive connotation, bringing clarity and credibility to the argument or statement being made.