wishy-washy

adjective2

1. •
   Thin or watery.

   • The wishy-washy orange juice served by the cafeteria not only failed to be sweet; it was barely orange.
2. •
   Wavering; lacking in commitment, certainty, support, and (often) clarity; namby-pamby.

   • Not wanting to be pressed for details, public relations gave a wishy-washy answer.