Definitions for unbowedʌnˈbaʊd
Random House Webster's College Dictionary
not bowed or bent.
not yielding, as to defeat; not subjugated.
Origin of unbowed:
straight, unbent, unbowed(adj)
erect in posture
"sit straight"; "stood defiantly with unbowed back"
not forced to bow down to a conqueror
Not bowed; erect or upright.
not bent or arched; not bowed down