aidless

adjective2

1. •
   Without aid.

   • I found the place Where that dam’d wisard hid in slie-disguise (For so by certain signs I knew) had met Alreadie, ere my best speed could praevent The aidlesse innocent Ladie his wish’t prey, — 1637
2. •
   Without mechanical assistance.

   • Aidless navigation has the advantage of not requiring equipment, but is much less accurate.