irrĕtortus (inr-), a, um, adj. [2. inretorqueo],
not turned back : oculo irretorto Spectat acervos, without looking back , Hor. C. 2, 2, 23.
in-retortus (irr-) adj., not turned back: oculo inretorto, without looking back, H. ...
An Elementary Latin Dictionary