inconstant
From LSJ
ἔργοισι χρηστός, οὐ λόγοις ἔφυν μόνον → a friend in deeds, and not in words alone
English > Greek (Woodhouse)
adjective
Ar. and P. ἀστάθμητος, P. and V. ἔμπληκτος, P. εὐμετάβολος, ἀκατάστατος.
untrustworthy: P. and V. ἄπιστος; see fickle.