1. the quality or state of being enough or adequate for a particular purpose
2. an adequate amount or quantity

Examples

• The sufficiency of our food supplies will last through winter.
• She questioned the sufficiency of the evidence presented in court.
• The budget showed a sufficiency of funds for the project.
• We need to ensure the sufficiency of clean water for all residents.
• The teacher doubted the sufficiency of his preparation for the exam.
• The sufficiency of the explanation satisfied most students.
• They achieved sufficiency in their savings to buy a house.