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futile, unavailing, otiose, ineffectual, idle, fruitless, vain | producing no result or effect | |
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fruitless, futile, vain, bootless, sleeveless | unproductive of success | |
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vain, self-conceited, conceited, egotistic, egotistical, swollen, swollen-headed | characteristic of false pride; having an exaggerated sense of self-importance |