Dictionary / Vocabulary / 臆面もなく
おくめんもなく
brazenly; shamelessly; unashamedly; unabashedly
Also written 臆面も無く
まあその、自慢できる事でもないんだけど。というか、臆面もなく吹聴できる話でもない。
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