best-kept secret
 

* 1.little known but excellent (of a restaurant, etc.)

English Related Words* an open secret

* armenian secret army for the liberation of armenia

* be in on the secret

* be in the secret

* betray a secret

* can keep a secret

* change secret

* closely guarded secret

* concealed his secret

* deep, dark secret

* disclose a secret

* disclose one's secret

* disclosed his secret

* disclosed secret facts

* disclosed the secret