Dictionary.net

unproductive of success; "a fruitless search"; "futile years after her artistic peak"; "a sleeveless errand"; "a vain attempt"

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"

unproductive of success; "a fruitless search"; "futile years after her artistic peak"; "a sleeveless errand"; "a vain attempt"

Proud of petty things, or of trifling attainments; having a high opinion of one's own accomplishments with slight reason; conceited; puffed up; inflated.

Having no real substance, value, or importance; empty; void; worthless; unsatisfying.

Vanity; emptiness; - now used only in the phrase in vain.

Proud of petty things, or of trifling attainments; having a high opinion of one's own accomplishments with slight reason; conceited; puffed up; inflated.

Having no real substance, value, or importance; empty; void; worthless; unsatisfying.

Vanity; emptiness; - now used only in the phrase in vain.

Valueless; empty; trifling; as, vain words; without force or effect useless; as, rain efforts; proud of small accomplishments or of personal appearance; conceited; as, a vain person; showy: in vain, without success.

Vainly.

Vainest.

Vainly.

Unsatisfying: fruitless: unreal: conceited: showy: vacant, worthless, so in B.

Vainly.

Empty; unreal; ineffectual; fruitless.

Vainness.

Fruitless; ineffectual; conceited; showy.

Empty; worthless; having no substance, value or importance; fruitless; ineffectual; proud of trifling attainments; conceited; unreal; ostentatious; inconstant; unsatisfying; deceitful; having no efficacy. In vain, to no purpose; with levity or profaneness.

Proud of trifling attainments; having an unduly high opinion of one's own accomplishments; ineffectual; fruitless, as an effort; unsatisfying.