adj.unwilling to make or express an apology

"an unapologetic believer"

Unapologetic
Unapologetic Forgiveness
Unapologetic theology : a Christian voice in a pluralistic conversation
"Unapologetic and unafraid": immigrant youth come out from the shadows.
The Gendered Unapologetic: Queer Resistance in Women’s Sport
Unapologetic women, "Comic Men"and feminine spectatorship in David E. Kelley's Ally McBeal
Macho Media: Unapologetic Hypermasculinity in Vancouver's "Talk Radio for Guys"
Unapologetic Theology: A Christian Voice in a Pluralistic Conversation by William C. Placher
Undocumented, unapologetic, and unafraid: Discursive strategies of the immigrant youth DREAM social movement
Undocumented, unafraid and unapologetic: Re-articulatory practices and migrant youth “illegality”