A mainstreamer is someone who conforms to society's norms and values. Synonyms for mainstreamer might include conformist, traditionalist, or follower. Other similar words could include regular, ordinary, or average. A mainstreamer might also be referred to as a trend follower or conventional thinker. However, not all who fit the description of a mainstreamer are necessarily complacent or unoriginal. They may simply prefer to adhere to the dominant beliefs and practices of their community. Regardless of the label used, it's important to remember that everyone has unique perspectives and the power to think for themselves.