ἀμήχανος μηχανή without means or resource, at a loss, τινος about one, Od.; ἀμ. εἴς τι awkward at a thing, Eur.:—adv., ἀμηχάνως ἔχειν ἀμηχανεῖν, Aesch., Eur. c. inf. at a loss how to do, unable to do, Soph., Dem., etc. in pass. sense, impracticable, difficult, c. inf., ἀμήχανός ἐσσι πιθέσθαι Il.; ὁδὸς ἀμ. εἰσελθεῖν a road hard to enter on, Xen.; ἀμήχανόν ἐστι, c. inf. ʼtis impossible, Hdt., etc.:—absol., ἀμήχανα impossibilities, Aesch., etc. against whom nothing can be done, irresistible, of gods, Il.:—of things, ἀμήχανα ἔργα mischief without resource or remedy, Aesch., Hes., Trag.; of dreams, inexplicable, Od. extraordinary, immense, Plat.; ἀμήχανον εὐδαιμονίας an extraordinary amount of happiness, Il.:—often c. acc., ἀμήχανος τὸ μέγεθος, τὸ κάλλος, τὸ πλῆθος, i. e. inconceivable in point of size, etc., Plat., Xen.:—Plat. often adds the relatives οἷος, ὅσος, and ὡς, as, ἀμήχανον ὅσον χρόνον an inconceivable length of time, ἀμηχάνως ὡς εὖ extraordinarily well.