臆面 おくめんもなく
okumemmo naku

Adverb
Expression

1. brazenly; shamelessly; unashamedly; unabashedly; impudently; audaciously

まあその、自慢 じまんできる 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 はなしでもない。
mā sono jiman dekiru kotodemo nai ndakedo. to iuka okumemmo naku fuichō dekiru hanashidemo nai.
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
Other forms: