ἀνυστός
From LSJ
τὸ πλῆθος οὐκ εὐαρίθμητον ἦν → the crowd wasn't easy to count, the crowd was not small, it was not a small crowd
English (LSJ)
όν,
A to be accomplished, practicable, οὔκ ἐστ' ἀνυστὸν τόνδε σοι κατακτανεῖν E.Heracl.961, cf. D.Chr.12.34; τί γὰρ μερόπεσσιν ἀ.; Opp.H.2.4: neut., ὡς ἀνυστόν [ἐστι], like ὡς δυνατόν, ὡς ἀ. κάλλιστα Diog.Apoll.3; ὡς ἀ. ἀνθρωπίνῃ γνώμῃ Hp. Nat.Puer.29; σιγῇ ὡς ἀ. as silently as possible, X.An.1.8.11; ᾗ ἀ. μετριωτάτῳ Id.Lac.1.3; τὰ ἀνθρώπῳ ἀ. Arist.Fr.44. 2 of persons, able, ready, πρὸς λόγους Hp.Decent.3.