marked by qualities giving the power to produce an intended effect; "written propaganda is less efficacious than the habits and prejudices...of the readers"-Aldous Huxley; "the medicine is efficacious in stopping a cough"
capable of being reached; "a town accessible by rail"
easy to get along with or talk to; friendly; "an accessible and genial man"
easily obtained; "most students now have computers accessible"; "accessible money"
capable of being read with comprehension; "readily accessible to the nonprofessional reader"; "the tales seem more approachable than his more difficult novels"