IPA: /æmˈbɪʃəs/
KK: /æmˈbɪʃəs/
Having a strong desire to achieve success or a particular goal, often requiring a lot of effort and determination.
She is very ambitious and wants to become a successful doctor.
Comparative: more ambitious
Superlative: most ambitious
Ambitious → It is formed from "ambitio" (from Latin, meaning a going around or striving) and the suffix "-ous" (meaning full of). The word "ambitious" describes someone full of striving or desire to achieve success.
Think of someone who is 'striving' ('ambitio') for success — that's why they are called ambitious.