そんな
そんな · sonna · JLPT N4 · na-adj
that sort of
so (that) + na (kind of) = that kind of, near you
Part of the ko-so-a-do set: konna (this kind of), sonna (that kind of, near the listener), anna (that kind over there), donna (what kind of). The so- marks something tied to the listener, as in sore and sono.