αὐτοπίστους
αὐτόπιστος, credible in itself
Morpho works with a static database. If you like, you can compare the output of Morpheus.
Parsed as:
feminine accusative plural (newmorph18)
masculine accusative plural (newmorph18) of
αὐτόπιστος
No checked forms of αὐτόπιστος in the morphology database.