► determinedhaving or showing a strong desire to do something even if it is difficult: Gwen is a very determined woman. He made a determined effort to give up smoking.
► tough having a strong character and determined to succeed, even in difficult situations: She is a tough negotiator and usually gets what she wants.
► persistent continuing to try to do something, even when you do not succeed for a long time: If you want to get a job, you have to be persistent.
► single-minded very determined to achieve one thing and ignoring everything else: He is single-minded in his desire to win the marathon, and he rarely talks about anything else.
► tenacious formal very determined to do something and refusing to stop trying: The salesman was tenacious and wouldn’t take no for an answer.
► stubborn determined not to change your ideas or what you are doing, even when this seems unreasonable: If lawmakers continue to be stubborn and refuse to work together, the country will continue to decline.
► resolute formal very determined to not change your mind because you believe strongly that you are right: The president remained resolute despite strong opposition from Congress.