The only action the word "actionable" is worthy of is to strike it from your vocabulary.
In a business context, “actionable” almost always precedes the word “item.” An “item” is “actionable” if it requires someone to take action, so “actionable items” may include everything from firing your assistant to picking up donuts for your staff.
Every item is "actionable," so why bother using this word? have you ever hear anyone refer to an item as being "inactionable?"
My dictionary defines “actionable” as “giving cause for legal action,” which is fine, because lawyers are accustomed to awkward word constructions.
Whoever started using it to modify “items” should be sued. Consider joining me in a class-actionable suit.