conventionality

noun
UK /kənˌvenʃəˈnæləti/
US /kənˌvenʃəˈnæləti/

The quality of doing things the way most people usually do them.

Her conventionality made her choose the same kind of dress everyone else wore.


OTHER MEANINGS

2. The state of following accepted social rules and customs.

The small town was known for its conventionality and quiet habits.

3. Something that is ordinary and expected rather than new or unusual.

The film's conventionality made it easy to guess the ending.

4. Agreement with a standard or widely used practice.

Engineers checked the conventionality of the design before building it.