What is another word for causelessly?
Pronunciation: [kˈɔːzləslɪ] (IPA) 
"Unjustifiably" could be a good synonym for "causelessly." The word suggests that something happened without a valid reason or explanation. Another synonym is "groundlessly," which connotes that there is no basis or evidence for a particular action or occurrence. "Arbitrarily" is also a word you can use in place of "causelessly," which means something was done without reason or thoughtfully. "Unreasonably" is another synonym that implies that a decision was made without logic or fair basis. These words can be helpful in writing or speaking when you want to emphasize that something is done without cause or reason.
