pro- Use a hyphen when combining with words to indicate “in favor of” or when followed by a proper name: pro-business, pro-labor, pro-war; pro-Canadian. Otherwise, no hyphen: proactive, pronoun. Except in quotations, do not use the polemical terms pro-choice and pro-life.

Is proactive one word or two?

Thanks! In the past, "pro-active" was more common (and it's still technically correct today, but you probably won't see it many places except for older writings).

How do you spell proactive?

1 [pro- entry 2 + reactive] : acting in anticipation of future problems, needs, or changes Once patients have the big data about their bodies, the thinking goes, they can be proactive about their health, cut care costs and foster better relationships with their doctors.