ἀθεμελίωτος
From LSJ
οὗτος μὲν ὁ πιθανώτερος τῶν λόγων εἴρηται, δεῖ δὲ καὶ τὸν ἧσσον πιθανόν, ἐπεί γε δὴ λέγεται, ῥηθῆναι → this is the most credible of the stories told; but I must relate the less credible tale also, since they tell it
English (LSJ)
ἀθεμελίωτον, = ἀκροσφαλής (apt to trip, unsteady, precarious, insecure, apt to throw down, slippery, dangerous), ψεύστης, Hsch. ; ἀ. οἰκία, of a ship, Secund.Sent. 17.
Spanish (DGE)
-ον
que carece de cimientos οἰκία fig. de un barco, Secund.Sent.14, de un razonamiento teológico ἔπεσέν σου ἡ στάσις ἡ ἀ. Epiph.Const.Haer.44.4.14, cf. Hsch.s.u. ἀτερμάτιστος.
German (Pape)
ohne Grundlage, Sp.