δυστύπωτος
From LSJ
κρεῖττον σιωπᾶν ἐστιν ἢ λαλεῖν μάτην → it's better to keep silence than to speak without reason (Menander)
English (LSJ)
[τῠ], ον, not easily taking an impress, Id.1.322.
Spanish (DGE)
-ον
1 mal formado, δυσμάθεια δυστυπώτου (γνώρισμα) la dificultad de aprender es (indicio) del (cerebro) mal formado Gal.1.322.
2 difícil de conformar o moldear τὸ γὰρ στερεὸν δυστύπωτον Alex.Aphr.Febr.19.3, δ. ... αὐτὴ (ἡ γῆ) καθ' ἑαυτήν Phlp.in de An.448.10.