Decided (adjective)

1. Having made a definite decision.
2. Showing a clear and distinct quality or character.

Origin:

Late middle english: past participle of decide, from latin decidere, from de- "completely" + caedere "cut".

Examples:

1. She made a decided effort to improve her grades.
2. He had a decided advantage over the other competitors.
3. The decided outcome was a victory for the team.
4. The decided winner was clear.
5. She had a decided preference for classical music.