There are several synonyms for the phrase "be adequate." Some of the commonly used synonyms include suffice, meet, satisfy, fulfill, and equal. These words indicate that something is enough or sufficient to meet a certain need or requirement. For instance, if a person's qualifications match the job requirements, we can say that he or she is adequate for the job. Similarly, if a product's quality meets the customer's expectations, we can say that the product is adequate. In simple terms, synonyms for "be adequate" convey a sense of competence or suitability that meets or exceeds a standard or expectation.