disservice
n. C1 Advanced US //dɪˈsɝvəs// UK //dɪsˈɜːvɪs// dis·ser·vice
n. the act of helping someone or something to fail or be harmed. You use this when you do something that makes a situation worse than it already is.
n. the act of causing a person or thing to suffer harm or failure. Often used in the phrase 'do a disservice to', indicating that an action or statement has a negative impact on the subject.
The poor quality of the translation did a disservice to the original book.
By ignoring the safety warnings, the company did a great disservice to its customers and its own reputation.
The hasty publication of the report did a disservice to the research team's years of effort, as the findings were misinterpreted by the media before they could be properly explained.