a game in which one child bends down and another leaps over
advancing as if in the child's game, by leaping over obstacles or competitors; "the company still believes the chip is a leapfrog in integration and will pay huge dividends"
progress by large jumps instead of small increments
not giving satisfaction; "shops should take back unsatisfactory goods"; "her performance proved to be unsatisfactory"; "life is becoming increasingly unsatifactory"; "our discussion was very unsatisfactory"