"Decliner" is a term that refers to a person who refuses or denies something. There are several synonyms for this word, including rejecter, denier, disavower, repudiator, and abstainer. Each of these words signifies a person who declines something in different ways.
The term "rejecter" denotes a person who refuses an offer or suggestion. The word "denier" implies someone who denies the truth or fact presented. "Disavower" refers to a person who denies any knowledge or involvement in something.
The word "repudiator" signifies a person who rejects or refuses an idea or belief. Finally, an "abstainer" is someone who voluntarily refrains from something, such as food or alcohol. By using these synonyms, one can make their speech or writing more diverse and nuanced.