Obverting is a technical term used in logic which refers to the act of changing a proposition by converting its quality and quantifier. Some synonyms of obverting include inverting, altering, reversing, changing, and transforming. Inverting refers to the act of changing the quality of the proposition from affirmative to negative and vice versa. Altering and changing both refer to modifying the proposition through conversion. Reversing implies that the original proposition is flipped or turned over. Transforming refers to changing the form or nature of the proposition. These synonyms can be used interchangeably to describe the process of obverting a proposition in logical reasoning.