μέγα βιβλίον ἴσον τῷ μεγάλῳ κακῷ → a big book is the same as a big bad | a big book is the same as a big pain | a big book is a big evil | big book, big bad
P. and V. ἐπιμελής (Sophocles, Fragment).
cautious: P. εὐλαβής.
