ἀκατάσειστον
ἀκατάσειστος, not to be shaken
Morpho works with a static database. If you like, you can compare the output of Morpheus.
Parsed as:
feminine accusative singular (newmorph18)
masculine accusative singular (newmorph18)
neuter accusative singular (newmorph18)
neuter nominative singular (newmorph18)
neuter vocative singular (newmorph18) of
ἀκατάσειστος
No checked forms of ἀκατάσειστος in the morphology database.