Winning (adjective)

1. Having won a competition, contest, or game.
2. Likely to be successful.
3. Having a pleasing or attractive quality that inspires success.

Origin:

Middle english winnen, from old english winnan; akin to old high german winnan to win.

Examples:

1. The winning team lifted the trophy.
2. She had a winning smile.
3. He had a winning attitude and always tried his best.
4. The winning lottery numbers were announced on television.
5. His winning streak finally came to an end.