Behavioral refers to anything that relates to the actions and habits of individuals or groups. Some synonyms for behavioral include conduct, demeanor, mannerisms, tendencies, customs, character, and personality.
Conduct refers to how people behave in certain situations, while demeanor describes the overall attitude or appearance displayed by someone. Mannerisms refer to unique habits or behaviors that someone may have, while tendencies describe patterns of behavior that are observed over time.
Customs are societal beliefs and practices that influence behavior, while character refers to a person's ethical and moral values. Personality describes an individual's unique characteristics, such as temperament and emotional tendencies.
All of these synonyms for behavioral can be useful in accurately describing different aspects of human behavior.