ἀπηνῶς

From LSJ

τῶν οἰκιῶν ὑμῶν ἐμπιπραμένων αὐτοὶ ᾄδετε → your homes are on fire and all you can do is sing

Source

Russian (Dvoretsky)

ἀπηνῶς: сурово, жестоко (χρῆσθαί τινι Plut.).

Spanish

inhumanamente, intratablemente