How could any woman say "I find I am too old" with that unregretting accent?.    From Wordnik.com.  [The Brimming Cup] Reference

Regarding his procession of memory he felt gleeful and unregretting, for in it his public deeds were paraded in great and shining prominence.    From Wordnik.com.  [The Red Badge of Courage] Reference

Of science unregretting; eye afar.    From Wordnik.com.  [The Poetical Works of Henry Kirk White : With a Memoir by Sir Harris Nicolas] Reference