Learn English – the term that describes someone who is not interested in sex

word-requestword-usage

He or she is not infertile. They have normal sex hormones but just they don't find it interesting.

To clarify,

For instance, compared to a man (who is not this) who'd stare at a blonde in a swimsuit, this guy will simply turn his face.

Any term (including slang) would work.

Best Answer

Such a person would be asexual or nonsexual, their condition would be called asexuality or nonsexuality:

Asexuality (or nonsexuality) is the lack of sexual attraction to anyone, or low or absent interest in sexual activity.

There is also a website about it (it seems google takes its definition from there), but I cannot reach it to check from behind my current firewall. If google does take it from there, this page says:

An asexual is someone who does not experience sexual attraction. Unlike celibacy, which people choose, asexuality is an intrinsic part of who we are. There is considerable diversity among the asexual community; each asexual person experiences things like relationships, attraction, and arousal somewhat differently.

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