In everyday conversations, describing someone's physical appearance is quite common. When referring to a person who is neither overweight nor underweight but has an average build, we can simply say: "He is neither fat nor thin; he has a medium build." This concise description paints a clear picture of someone whose body type falls right in the middle, without any extreme characteristics.

The phrase "medium build" or "average build" is widely used in English-speaking cultures to denote someone who is not particularly slim or heavy. It suggests balance and moderation in terms of physique. Whether you're introducing a friend at a gathering or writing about a character in a story, this expression helps convey the idea of normalcy and typicality in appearance.

Moreover, such descriptions often reflect societal norms where being average is seen as desirable—neither too much nor too little. It's a gentle way of painting a portrait that resonates with many people because it avoids extremes and focuses on harmony.

So next time you need to describe someone who fits this profile, remember that simplicity works best. Just mention they have an average build, and your audience will instantly understand what you mean!