Yes, it is possible to receive unintentional or wrong traffic to your site. There are several reasons behind this such as the following:
1) Users may accidentally mistype a URL in their browser, resulting in their landing on your site unintentionally.
2) Also, sometimes, website owners or bloggers may link to your website mistakenly or add incorrect links in their content. As a result, users who click on those links may end up on your site.
3) If you run online advertisements, there might be instances where the ads are placed on websites or platforms that are irrelevant to your target audience. As a result, users who click on those ads may end up on your website unintentionally.