TENACITY definition: 1. the determination to continue what you are doing 2. the determination to continue what you are…. Learn more., Most people will tell you that tenacity is a great quality to have, especially if you're trying something challenging that takes a while to complete. Odds are, the people you admire have shown real tenacity in achieving their goals., noun the quality of being tenacious, or of holding fast; persistence. the amazing tenacity of rumors. the quality of retaining something. the tenacity of memory. the quality or property of holding together firmly., Definition of tenacity noun from the Oxford Advanced Learner's Dictionary. the quality of not giving up something easily; the quality of being determined. They competed with skill and tenacity. The Oxford Learner’s Thesaurus explains the difference between groups of similar words., If you have tenacity, you are very determined and do not give up easily. Talent, hard work and sheer tenacity are all crucial to career success., tenacity (countable and uncountable, plural tenacities) The quality or state of being tenacious, or persistence of purpose; tenaciousness..