IPA: /ˌsuːpəræmˈbɪʃəs/
KK: /suːpəræmˈbɪʃəs/
Having a strong desire to achieve success or reach high goals, often to an extreme degree.
Her superambitious nature drove her to work long hours and pursue multiple projects at once.
Superambitious → It is formed from "super-" (meaning above or beyond) and "ambitious" (from Latin "ambitiosus", meaning eager for advancement). The word "superambitious" describes someone who is extremely eager for success or advancement, going beyond the usual level of ambition.
Think of someone who is 'above' ('super-') the usual level of 'eagerness for success' ('ambitious') — that's why superambitious means extremely eager for success.