MBTI Types Most Likely to Cheat

If you have ever wondered whether personality predicts who strays, you are not imagining the pattern. Infidelity is not random. It tracks closely with two things psychologists measure directly, novelty-seeking and impulse control, and the 16 MBTI types differ on both far more than people expect. Some types are wired to chase the new moment; others are built for the long, loyal haul. Below we rank all 16 from most to least likely to cheat, score each one, and explain exactly which part of the wiring tips the odds.

Infidelity risk by type, ranked

The top of the list

ESTP and ESFP lead because they live in the present and chase stimulation, which is exactly the setup for an impulsive lapse. ENTP follows: easily bored, drawn to novelty, and prone to talking themselves into it. None of this is destiny, but the wiring tilts the odds.

The bottom of the list

INFJ, ISFJ, and ISTJ are the most loyal by a wide margin. For ISTJ it's duty: a commitment is a commitment. For ISFJ and INFJ it's depth: they bond slowly and seriously, and betrayal violates their core values. They're far more likely to leave than to cheat.

Full ranking, all 16 types

How this was scored

Scored on the traits psychology links to infidelity: novelty-seeking, impulsivity, present-focus, and discomfort with routine. The Se-Perceiving pattern (ESTP, ESFP) scores highest; dutiful Judging types lowest. A trait-based estimate, not a confession survey.

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