ἀμεύσιμος
From LSJ
ἑτέρως ἠδύνατο βέλτιον ἢ ὡς νῦν ἔχει κατεσκευάσθαι → otherwise they could have been constructed better than they are now (Galen, On the use of parts of the body 4.143.1 Kühn)
English (LSJ)
ον, (ἀμεύομαι)
A passable, A.R.4.297.
Greek (Liddell-Scott)
ἀμεύσιμος: -ον, (ἀμεύομαι) = πορεύσιμος, Ἀπολλ. Ρόδ. Δ. 297, Ἐτυμ. Μ.