How to say "visceral" in Japanese

• 理屈抜きりくつぬき
  no-adjectiveSeldom the word you want for 'visceral'. It really means doing something without any reason or logic, with rational argument set aside, rather than describing a gut-level reaction.
• 生理的せいりてきCommon
  na-adjectiveThe common word for the genuine 'visceral' sense: instinctive, felt in one's guts — a reaction that comes from the body's automatic responses rather than from reasoning.
  子供こどもや赤あかちゃんは生理的せいりてきに苦手にがてなの。↗

  I'm instinctively bad with children and infants.

For the gut-level, instinctive sense of 'visceral' choose 生理的; 「理屈抜き」 really means 'without logic or reasons', so it is a less common, marginal way to express 'visceral'.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

• 理屈抜きりくつぬきwithout any reason
• 生理的せいりてきvisceral