The word "over-leapt" implies jumping or leaping over something, so its antonyms would be related to staying put, being still, or not moving. Some possible antonyms could be "stood still," "remained grounded," "stayed in place," "held back," or "halted." These antonyms convey the opposite meaning of the action of over-leaping, suggesting that one their feet or in the same spot rather than jumping over or across something. Furthermore, these can be seen as cautionary measures, as opposed to over-leaping, which usually reflects an impulsive act.