American English

Definition of tenacious adjective from the Oxford Advanced American Dictionary

     

    tenacious

     adjective
    adjective
    NAmE//təˈneɪʃəs//
     
    (formal)
     
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  1. 1that does not stop holding something or give up something easily; determined a tenacious grip She's a tenacious woman. She never gives up. The party has kept its tenacious hold on power for more than twenty years.
  2. 2 continuing to exist, have influence, etc. for longer than you might expect synonym persistent a tenacious illness
tenaciously
 
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adverb Though seriously ill, he still clings tenaciously to life.
NAmE//təˈnæsət̮i//
 
noun [uncountable] They competed with skill and tenacity.
See the Oxford Advanced Learner's Dictionary entry: tenacious