arbitrarily
🇺🇸
/ˌɑːrbɪˈtrerəli/
🇬🇧
/ˌɑːbɪˈtrerəli/
in a way that is not based on reason or a plan, and may seem unfair
The manager arbitrarily decided who would work on weekends without asking anyone.
in a way that uses power without limits and without thinking about others
The king arbitrarily changed the laws without asking the people.