"Not unnaturally" is a phrase used to indicate that a situation or action is understandable or expected under certain circumstances. Some synonyms for this phrase include "logically," "reasonably," "predictably," "naturally," "inevitably," and "justifiably." These synonyms all convey the idea that the situation or action being described is a reasonable or expected outcome of the given circumstances. Often, the use of these synonyms can add depth and nuance to a written or spoken statement, helping to clarify the speaker or writer's intentions and meaning. Choosing the right synonym for "not unnaturally" can help to make a message more effective, engaging, and clear for the intended audience.