Plucky (adjective)

1. Showing courage and determination in the face of difficulties.
2. Having or showing a lot of energy and determination.

Origin:

The term "plucky" is derived from the word "pluck" which means to pull or tug at something sharply.

Examples:

1. She was a plucky young girl who never gave up.
2. The plucky little bird was determined to build a nest.
3. The plucky underdog team managed to win the game.
4. She had a plucky spirit and always persevered through her struggles.
5. Despite being outmatched, the plucky fighters put up a good fight.