not consisting of matter: ἀειδής (Plato).
without body: P. ἀσώματος.
shadowy: P. σκιοειδής, ἀμυδρός, V. ἀμαυρός.
not necessary: P. and V. οὐκ ἀναγκαῖος.
secondary: P. ὕστερος; see secondary.
nothing to do with the subject: P. οὐδὲν πρὸς λόγον.