The term is the union of two words correct, logical and with meaning. Jealousy, is the feeling of suspicion, fearful pain that your lover wants or loves most to another person or entity. It can occur between any persons or animals, whatever the relationship that unites them. Unfounded, means, "without foundation", "base", i.e. that lacks justification. "Unfounded jealousy" is the feeling of jealousy, when there is no objective, demonstrable reason to exist. They tend to occur in people too sensitive or unbalanced. Although they sometimes respond more to an intuition that some reasons objective and that you can try.
