Inoffensive /(?)/

In·of·fen·sive

Inoffensive

a.
  1. Giving no offense, or provocation; causing no uneasiness, annoyance, or disturbance; as, an inoffensive man, answer, appearance.
  2. Harmless; doing no injury or mischief.
  3. Not obstructing; presenting no interruption or hindrance. [R.]
    So have I seen a river gently glide In a smooth course, and inoffensive tide.