πολύνοος
From LSJ
τῶν δ᾽ ὀρθουμένων σῴζει τὰ πολλὰ σώμαθ᾽ ἡ πειθαρχία → But of those who make it through, following orders is what saves most of their lives (Sophocles, Antigone 675f.)
English (LSJ)
ον, contr. πολύ-νους, ουν,
A thoughtful, opp. πολύλαλος, Plot.6.2.21, cf. Porph.Plot.14; profound, τὸ π. τῆς Πυθαγορικῆς βαθύτητος Hierocl.in CA26p.480M., cf. Iamb. in Nic.p.5 P. Adv. -νως Poll.2.230.
