Proactive

[prəʊ'æktɪv] or [,pro'æktɪv]

Definition

(adj.) (of a policy or person or action) controlling a situation by causing something to happen rather than waiting to respond to it after it happens .

(adj.) descriptive of any event or stimulus or process that has an effect on events or stimuli or processes that occur subsequently; 'proactive inhibition'; 'proactive interference' .

Inputed by DeWitt--From WordNet