Wellknit is an adjective that describes things which are closely and firmly joined together. Some synonyms for wellknit that convey the same meaning include compact, tight, dense, solid, sturdy, and substantial. When people use the word wellknit, they are often referring to things that are structurally strong and built to last. Sometimes the word can be applied to communities or groups of people who are closely connected and work well together. In such cases, other synonyms for wellknit might include close-knit, cohesive, and harmonious. Overall, these synonyms help to describe a sense of strength and unity which is often associated with the word wellknit.