sinister
From LSJ
Εἰ μὲν ἐπ' ἀμφοτέροισιν, Ἔρως, ἴσα τόξα τιταίνεις, εἶ θεός (Rufinus, Greek Anthology 5.97) → If, Eros, you're stretching your bow at both equally, then you're a god.
English > Greek (Woodhouse)
adj.
Inauspicious: P. and V. κακός, δυστυχής, δύσφημος (Plat. but rare P.), V. κακόγλωσσος, σκαιός, εὐώνυμος (Aesch., P. V. 490).
Evil: P. and V. κακός, ἀνόσιος, πανοῦργος, πάγκακος.
Malign, harmful: P. and V. ἀσύμφορος, κακοῦργος, Ar. and V. ἀτηρός; see harmful.
Dangerous: P. and V. δεινός, Ar. and P. χαλεπός.
Spiteful: P. and V. φθονερός, ἐπίφθονος; see malevolent.