teenacious

Similar to the word tenacious with specificity towards young adults aged 13-19. The act of being so stubborn in one's teenage mind that (s)he will triumph over adversity through sheer force of will.
I told him he'd never make the Varsity tennis team. He was so teenacious that he practiced every day for 3 straight months and made it.

Reverse psychology doesn't work on her. She teenaciously holds on to her beliefs.
by The Righteous Huntster Co. October 08, 2010
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