The antonyms for the word "benefiting by" include terms such as "suffering from," "disadvantaged by," "losing out on," and "incurring costs from." These words imply a negative impact, either in terms of financial loss, social status, or overall personal well-being. For example, one might say that disadvantaged communities suffer from systemic racism and are often unable to benefit from economic opportunities. Similarly, some industries may incur costs from environmental regulations that curtail their profits. In any case, understanding the antonyms of benefiting by highlights the ways in which individuals, groups, and societies can be harmed by different factors.