ἀτλήτως

From LSJ

Ἐς δὲ τὰ ἔσχατα νουσήματα αἱ ἔσχαται θεραπεῖαι ἐς ἀκριβείην, κράτισται → But for extreme illnesses, extreme remedies, applied with severe exactitude, are the best (Hippocrates, Aphorism 6)

Source

French (Bailly abrégé)

adv.
d'une façon intolérable.
Étymologie: ἄτλητος.

Spanish

intolerablemente