Would just be called non-JS. However you don't need to avoid javascript completely to cater to non-js users. The term "progressive enhancement" is used for a site that works without javascript but gets enhanced when it loads. Hacker News is like that. The links/buttons would trigger full page loads except the javascript cancels those actions and handles them without. The vote button won't refresh a page, for example.

I personally don't think there's a market for non-js users. Most of the web is pretty broken without. I've never encountered someone in the real world who lives this way, even in the tech world. At most, someone will install a no-script browser plugin. That makes whitelisting and enabling javascript dead easy for the user. The only legitimate non-js use cases, IMHO, are for extreme political cases where you'd also be using TOR.