Obstinate/ˈɑːbstɪnət/ Definition 1 of 2Pro Tip 1/3Negative Connotation Often implies a criticism for being too determined or inflexible. The obstinate player was benched for not following the coach's strategy. Pro Tip 2/3Not Just Stubborn Use when someone resists change despite clear evidence or arguments. He remained obstinate despite the experiment's repeated failure. Pro Tip 3/3Emotional Weight Can convey frustration when dealing with an uncooperative person or situation. Her obstinate attitude made the negotiation process exhausting.