ἀνεπαίσθητος
From LSJ
νῆα μὲν οἵ γε μέλαιναν ἐπ' ἠπείροιο ἔρυσσαν ὑψοῦ ἐπὶ ψαμάθοις, ὑπὸ δ' ἕρματα μακρὰ τάνυσσαν → they pushed the black ship up over the sand onto dry land and placed long beams under her
English (LSJ)
ον,
A unperceived, imperceptible, Ti.Locr. 100b, Plu.2.1062b, Luc.Sat.33. Adv. -τως Simp. in Cat.309.3. 2 Act., not perceiving, τινός Plb.28.1.6, Longin.4.1. OGI194(Egypt. Adv. -τως Ph.Fr.70H., Hippiatr.38, Svrian. in Metaph.100.38, Simp. in Ph.1198.39.