futile

futile is an   Adverb

Definition:

[1] Talkative; loquacious; tattling. [Obs.] Talkers and futile persons. Bacon.

[2] Of no importance; answering no useful end; useless; vain; worthless. "Futile theories." I. Taylor. His reasoning . . . was singularly futile. Macaulay.

Synonyms: