ἐξ ἀπροσδοκήτου
From LSJ
Νέῳ δὲ σιγᾶν μᾶλλον ἢ λαλεῖν πρέπει → Iuvenem magis tacere quam fari decet → Dem jungen Mann steht Schweigen mehr als Reden an
Greek > English (Woodhouse)
unexpectedly, by surprise, out of the blue, suddenly, unawares, all of a sudden
