I know what responsive means. I went from maximized window to narrower than many websites can handle and it adapts flawlessly. No idea how anyone could call this not responsive.

...the site is not responsive at all to fit to a mobile device?

There's two definitions of responsive, both of which are used in this thread.

1. It responds to your actions. Click stuff and it does that and does it quickly.

2. It gives you a different response based on which device you are using. You log on with a mobile device, it gives you a screen suited to mobile.

It doesn't do the latter. I'm on a phone. It might resize screens on a desktop, but doesn't do it for a phone.