Openly or publicly; done without concealment, officially, or in a way that is obvious to everyone.
彼は公然と批判を受け入れた。
He accepted the criticism openly.
その行為は公然の秘密だった。
That act was an open secret.
問題が起きているにもかかわらず、会社は公然と無視した。
Despite the problem, the company openly ignored it.