approxadamus

an approxadamus is a semi-gifted individual who is able to predict the future, with a slight inaccuracy.
To illustrate, while Nostradamus might say - "One-eyed, red-haired, white, hoary-headed will hold the course" and no one would have a clue, except maybe the crossword fanatics (and nobody cares about them ), and the approxadamus might say "I am going to fall down the stairs tomorrow" when what might actually happen is that the stairs near the approxadamus's residence collapse all by themselves with none hurt in the process.
Approx. adamus.