Difference between Unimpeachable and Acceptable

Unimpeachable

Part of speech: adjective

Definition: not able to be impeached or reproached blameless beyond doubt

Acceptable

Part of speech: adjective

Definition: Capable, worthy, or sure of being accepted or received with pleasure; pleasing to a receiver; gratifying; agreeable; welcome; as, an acceptable present, one acceptable to us.Barely worthy, less than excellent; passable.

Example sentence: The relationship between renewable energy sources and the communities we expect to host them must be appropriate and sustainable and, above all, acceptable to local people.