Open English Wordnet
Adjectives
(s)afoottraveling by foot“she was afoot when I saw her this morning” (s)afoot, underwaycurrently in progress“there is mischief afoot”,
“plans are afoot”,
“preparations for the trial are underway” Adverbs
(r)afooton foot; walking“they went to the village afoot”,
“quail are hunted either afoot or on horseback”