causative /ˈkɔːzətɪv/adjective 3noun 1forms 1 adjective3 •Acting as a cause.Causative in nature of a number of effects. — 1605 •Involving, or affected by, causality.Such statistical analysis can establish correlation but cannot tell us whether the correlation is proximally causative, distally causative, or noncausative. •Expressing a cause or causation.The ablative is a causative case. noun1 •An expression of an agent causing or forcing a patient to perform an action (or to be in a certain condition). formscausatives