'Vainly' definitions:

Definition of 'vainly'

From: WordNet
adverb
To no avail; "he looked for her in vain"; "the city fathers tried vainly to find a solution" [syn: vainly, in vain]

Definition of 'Vainly'

From: GCIDE
  • Vainly \Vain"ly\, adv. In a vain manner; in vain. [1913 Webster]