As a kind of advertisement, sometimes some restaurants, institutes, shops and so on announce that they're unique with no other branches. I wonder if there is an adjective to describe such a situation?
Thanks a million.
Being a non-native teacher, I'm so thrilled being in such a superb forum.
In BrE, it is an "independent restaurant", not a "chain".
Remember - if you don't use correct capitalisation, punctuation and spacing, anything you write will be incorrect.