ambitious
US /æmˈbɪʃ.əs/
UK /æmˈbɪʃ.əs/
1.
having or showing a strong desire and determination to succeed
:
•
She is an ambitious young lawyer.
•
He has ambitious plans for his career.
2.
requiring a lot of effort, money, or time to be successful
:
•
The project is very ambitious and will take years to complete.
•
They set an ambitious goal to reduce emissions by 50%.