What does "vague" mean?

Vague: Unsettled; unfixed; undetermined; indefinite; ambiguous; as, a vague idea; a vague proposition. This faith is neither a mere fantasy of future glory, nor a vague ebullition of feeling. I. Taylor. The poet turned away, and gave himself up to a sort of vague revery, which he called thought. Hawthorne.

Additional senses

  1. 2.Proceeding from no known authority; unauthenticated; uncertain; flying; as, a vague report. Some legend strange and value. Longfellow. Vague year. See Sothiac year, under Sothiac.
  2. 3.An indefinite expanse. [R.] The gray vague of unsympathizing sea. Lowell.
  3. 4.To wander; to roam; to stray. [Obs.] "[The soul] doth vague and wander." Holland.
  4. 5.A wandering; a vagary. [Obs.] Holinshed.

Sources