ἀστόχως

From LSJ

μὴ ἐν πολλοῖς ὀλίγα λέγε, ἀλλ΄ ἐν ὀλίγοις πολλά → don't say little in many words, but much in a few words (Stobaeus quoting Pythagoras)

Source

Spanish

sin alcanzar el blanco, torpemente

Russian (Dvoretsky)

ἀστόχως: ошибочно, безрассудно (χρῆσθαι τοῖς καιροῖς Polyb.).