There is a scene where Hal tells Rosemary that she is "altrudocious". She then says that there is no such word, and that he must mean "humanidocious". My friends and I have combed just about every dictionary in the world, but could not find "humanidocious". Even the internet listed the word only in connection with the movie. I think I finally figured it out. Altruistic and humanistic both mean the same thing - unselfish, and concerned about the welfare of others. I think Hal means to say altruistic, and instead says "altrudocious". I think Rosemary then picks up on that, and teasingly says "humanidocious" instead of humanistic.