1) Cantankerous 2) Cursed 3) Emulated Eminem in concert 4) Obdurate 5) Obstinate 6) Perverse 7) Said a four-letter word 8) Stubborn 9) Swore a blue streak 10) Swore up and down 11) Talked a blue streak 12) Unregenerate 13) Unregenerated 14) Unrepentant 15) Used colorful language Found on https://www.crosswordclues.com/clue/cussed