| Afoot 1. (adv.) In motion; in action; in progress; as, a plan was afoot. 2. (adv.) On foot. Thesaurus Entries accidental, accompanying, ado, afloat, astir, by foot, circumstantial, current, doing, eventuating, footback, going on, happening, in full swing, in hand, in the wind, incidental, occasional, occurring, on, on foot, on footback, ongoing, passing, prevailing, prevalent, resultant, stirring, taking place, under way |