groupmentality

noun
UK /ˈɡruːp mɛnˈtælɪti/
US /ˈɡrup mɛnˈtæləti/

A group mentality is when people in a group start thinking the same way.

The group mentality made everyone agree to the silly plan.


OTHER MEANINGS

2. The shared attitude or way of thinking that a whole group of people has.

The group mentality at the office was very positive and helpful.

3. The tendency to follow what others in a group do instead of deciding alone.

Group mentality led the fans to cheer even when the team was losing.

4. A strong feeling of belonging and thinking together as one team.

Their group mentality helped them win the game together.