臆面もなく

Meanings

1. Expression, Adverb

   brazenly; shamelessly; unashamedly; unabashedly; impudently; audaciously

• まあその、自慢じまんできる事ことでもないんだけど。というか、臆面おくめんもなく吹聴ふいちょうできる話はなしでもない。

  Well, that is, it's not something I can boast about. In fact, it's not something I can talk about in public without shame