unattainable
Definitions
Impossible to achieve or reach.
Not able to be obtained or acquired.
Examples
The goal of perfection is often considered an unattainable ideal.
He realized that the promotion was unattainable given his lack of experience.
They chased the dream of fame, only to find it was completely unattainable.
Synonyms
unachievable impossible out of reach unobtainable inaccessible beyond reach unrealizable
Antonyms
attainable achievable accessible obtainable within reach realizable feasible