1) Aggressively lively 2) Displaying pluckiness 3) Exhibiting pluck 4) Full of fight 5) Full of pluck 6) Full of spirit 7) Full of spunk 8) Full of spunky energy 9) Full of vinegar 10) Having spunk 11) Plucky 12) Quick to take offense 13) Showing courage 14) Spirited 15) Spunky Found on https://www.crosswordclues.com/clue/feisty