Brash bearing refers to a bold, self-assured and often reckless manner of carrying oneself. Other synonyms for this phrase include impudent demeanor, brazen attitude, audacious comportment, and assertive bearing. These terms describe the confidence and fearlessness that someone with a brash bearing displays, often bordering on arrogance. Other related words include conceited, overbearing, and pompous, which have more negative connotations. However, if someone with a brash bearing can balance their confidence with humility and respect for others, they may be seen as charismatic and inspiring leaders. Ultimately, the use of these different synonyms depends on the context and intended tone of the writer or speaker.