pensive
From LSJ
κρεῖττον τὸ μὴ ζῆν ἐστιν ἢ ζῆν ἀθλίως → death is better than a life of misery, it is better not to live at all than to live in misery
Of looks, etc.: P. and V. σκυθρωπός, V. στυγνός, συνωφρυωμένος.
look pensive: V. πεφροντικὸς βλέπειν.