悪足掻き[waruagaki] useless resistance
一挙手一投足[ikkyoshuittousoku] slight effort
一足[issoku] pair (footwear)
一足[hitoashi] step
一足先[hitoashisaki] one step ahead

一足飛び[issokutobi] (at) one bound
逸足[issoku] fast runner
右足[migiashi] right foot
運動不足[undoubusoku] insufficient exercise
栄養不足[eiyoubusoku] malnutrition

対蹠地[taisekichi] the antipodes
対蹠的[taishoteki] diametrically opposed
蹠骨[shokotsu] metatarsal
蹠行性[shokousei] plantigrade (walking on the soles of the feet)

対蹠[taiseki] antipodal
対蹠的[taisekiteki] antipodal
足蹠[sokuseki] sole (of the foot)