What is the term for a feeling that is deep-rooted and instinctive, as opposed to a rational or logical one?

The term that refers to a feeling that is deep-rooted and instinctive is "visceral." This word describes reactions or emotions that arise from deep within a person, often linked to gut feelings or innate responses that may not be easily articulated or rationalized. Visceral feelings typically evoke strong emotions and are deeply tied to human experiences and instincts, making them intuitive rather than derived from logical reasoning.

In contrast, "emotional" is a broader term that encompasses a wide range of feelings but does not specifically imply the depth or instinctual nature associated with "visceral." "Superficial" describes something that is external or lacking depth, which does not align with the concept of a profound, instinctive feeling. "Intellectual" pertains to rational thought and reasoning, which again contrasts with the instinctual and automatic nature of visceral feelings. Thus, "visceral" aptly captures the essence of deep-rooted and instinctive emotions.