"Scrappy" typically means determined, feisty, or tenacious. It describes someone or something that doesn't give up easily and is willing to fight or work hard, often in the face of challenges or adversity. Full definition
I like the notion of scrappy little underdog plants helping to transform the face of our planet. (sciencenews.org)
Take the essay in Scrappy Little Nobody that tackles Kendrick's first boyfriend. (vulture.com)
The second period started in scrappy fashion, with the back - and - forth football of the first 45 minutes being replaced by a battle for midfield supremacy. (liverpoolfc.com)