English to English
1. Having no real substance, value, or importance; empty; void; worthless; unsatisfying.
2. characteristic of false pride; having an exaggerated sense of self-importance
a conceited fool|an attitude of self-conceited arrogance|an egotistical disregard of others|so swollen by victory that he was unfit for normal duty|growing ever more swollen-headed and arbitrary|vain about her clothes
3. unproductive of success
a fruitless search|futile years after her artistic peak|a sleeveless errand|a vain attempt
4. Vanity; emptiness; -- now used only in the phrase in vain.