In reason refers to a sensible and logical manner that adheres to accepted norms and standards. There are many synonyms for in reason, including logically, rationally, sensibly, reasonably, and justifiably. These words indicate the use of sound judgment and clear thinking to arrive at a conclusion or make a decision. Other synonyms for in reason include with good cause, with proper rationale, within bounds, within limits, and within the bounds of practicality. All of these synonyms suggest that the action taken or the conclusion reached is based on solid reasoning and critical analysis, rather than being arbitrary or capricious.