Fattism, also known as sizeism, is the discrimination and prejudice against people who are overweight or obese. There are several synonyms for the term fattism, including size discrimination, weight bias, and obesity stigma. These terms all refer to the same discriminatory attitudes and behaviors towards individuals who are overweight. Other synonyms include body shaming, fatphobia, and weightism. While society has made strides in promoting body positivity and acceptance, discrimination based on weight and appearance remains a prevalent issue. It is important to recognize the harmful effects of these attitudes and work towards promoting inclusivity and acceptance for all body types.