"Personality similarity" refers to when two or more people have similar ways of thinking, behaving, and expressing themselves. It means that they share common traits, interests, and attitudes. Full definition
Personality similarity seemed to be an important factor for couples who stay together. (powerofpositivity.com)
In thinking about the future, how would personality similarities serve as a resource for you and your potential partner in the relationship? (relateinstitute.com)
What is the definition of personality similarity and who get's to say only similar types attract? (onlinedatingpost.com)