Lol, that's weird phrasing. I mean, it depends. Did he say it in a playful way? Like he was joking about the "kinda" part? Like, he may have said you were "kinda cute", but was only kidding and actually thought you were cute, but was joking with you.
It means he's telling you you're "kinda cute". not beautiful. not gorgeous. just kinda cute. don't read too much into it, he's probably not interested in you. but don't worry, plenty of fish in the sea, or so I've heard