This is the 7707th most frequent Russian word.
звездная
"Звёздная" means "starry" or "stellar" in English.
Here, 'звёздная' is an adjective describing the night as being starry, relating to stars.
Эта ночь была абсолютно звёздная.
That night was absolutely starry.
In this sentence, 'звёздной' is used metaphorically to describe a career as being outstanding or exceptional, akin to stars.
Она мечтала о звёздной карьере в кино.
She dreamt of a stellar career in cinema.
The word 'звёздном' functions as an attributive adjective to describe a high level of performance, figuratively drawn from the brilliance of stars.