ἀβάπτιστος
From LSJ
καὶ οἱ ἀμαθέστατοι τῶν ἰατρῶν τὸ αὐτὸ σοὶ ποιοῦσιν, ἐλεφαντίνους νάρθηκας καὶ σικύας ἀργυρᾶς ποιούμενοι καὶ σμίλας χρυσοκολλήτους: ὁπόταν δὲ καὶ χρήσασθαι τούτοις δέῃ, οἱ μὲν οὐδὲ ὅπως χρὴ μεταχειρίσασθαι αὐτὰ ἴσασιν → the most ignorant of doctors do the same as you, getting themselves ivory containers, silver cupping instruments, and gold-inlaid scalpels; but when it's time to use those things, they haven't the slightest notion of how to handle them
English (LSJ)
ον, (βαπτίζω)
A not to be dipped, that will not sink, ἀ. ἅλμας, of a net, Pi.P.2.80; ναῦς EM811.26; τρύπανον trepan with a guard, to stop it from going too deep, Gal.10.447. II not drenched with liquor, Plu.2.686b.