Acceptable

• worthy of acceptance or satisfactory; "acceptable levels of radiation"; "performances varied from acceptable to excellent"
• judged to be in conformity with approved usage; "acceptable English usage"
• satisfactory: meeting requirements; "the step makes a satisfactory seat"
• adequate for the purpose; "the water was acceptable for drinking"
• 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
• capable or worthy; meeting only minimum requirements
• Condition descriptor which indicates that the item inspected is working properly.