👉 In the context of psychology and sociology, "overweight" refers to a person who is overweight in relation to their body mass index (BMI) or weight. This can range from being significantly overweight to being underweight. Overweight typically means that a person's body mass index (BMI) is above the 25th percentile for their age group and gender, which is considered to be unhealthy. The term "overweight" also implies that there is an excess of fat in the body.