Example:

1. He has a lot of ambition and he's always striving to be the best.

2. She's very ambitious and she's always looking for new opportunities.

3. He's been acting more ambitious lately ,and I'm not sure if it's a good thing.

4. I'm not very ambitious, so I'm happy just staying in my current job.

5. The company is quite ambitious ,and they're always looking for new ways to grow.

6. I'm not sure if I have the ambition to start my own business, but I'm thinking about it.

Synonyms: motivation, drive, determination, aspiration, goal

Antonyms: apathy, lethargy, laziness, idleness, inertia