Passable

a.
  1. Capable of being passed, traveled, navigated, traversed, penetrated, or the like; as, the roads are not passable; the stream is passablein boats.
  2. Capable of being freely circulated or disseminated; acceptable; generally receivable; current.
  3. Such as may be accepted or allowed to pass without serious objection; adequate; acceptable; tolerable; admissable; moderate; mediocre.