controlling UK /kənˈtɹəʊlɪŋ/US /kənˈtɹoʊlɪŋ/adjective 1noun 1forms 3 adjective1 •Exerting control over a person or thing.His mother is very controlling. noun1 •The act of exerting control.What humble submission presided within; / How free from the reign, and controllings of sin. — 1856 formscontrollings · more controlling · most controlling