ἀπροφύλακτος
From LSJ
βωμὸν Ἀριστοτέλης ἱδρύσατο τόνδε Πλάτωνος, ἀνδρὸς ὃν οὐδ' αἰνεῖν τοῖσι κακοῖσι θέμις → Aristotle had this altar of Plato set up — Plato, a man whom the wicked dare not even mention in praise
English (LSJ)
[ῠ], ον,
A not guarded against, unforeseen, Th.4.55. Adv. -τως D.C.38.41, Ach.Tat.8.1. 2 unguarded, Opp.H.5.106. II Act., using no precautions, Hld.6.13.
German (Pape)
[Seite 340] 1) unbewacht. – 2) nicht verhütet, nicht vorhergesehen, Thuc. 4, 55. – Adv., D. Cass.