overreaching noun 2adjective 1forms 3 noun2 •The act or process of overreach (e.g. reaching beyond or extending past acceptable limits). •Deception.You cannot mention trade or business, for instance, but they will relate the frauds and overreachings by which such an one has acquired the wealth which he now possesses. — 1786 adjective1 •That overreaches (all senses). formsoverreachings · more overreaching · most overreaching