σκιοειδής
From LSJ
Περὶ τοῦ ἐπέκεινα τοῦ νοῦ κατὰ μὲν νόησιν πολλὰ λέγεται, θεωρεῖται δὲ ἀνοησίᾳ κρείττονι νοήσεως → On the subject of that which is beyond intellect, many statements are made on the basis of intellection, but it may be immediately cognised only by means of a non-intellection superior to intellection
English (LSJ)
ές,
A shadowy, σκιοειδέα φῦλ' ἀμενηνά Ar.Av.686 (mockheroic); σ. φαντάσματα Pl.Phd.81d. 2 of colours, dark, καρποί Arist.Col.795a33; cf. σκιώδης.