Marked by imprecision and vacillation; inconstant; uncertain: The wishy-washy player keeps putting off the evil day/ It's not overpowering like Opium and not wishy-washy [1873+; fr a rhythmic reduplication of washy, ''weak, diluted, watered-down,'' probably influenced by wishy as suggesting vacillating desires; the original sense was ''weak, insubstantial, trashy,'' found by 1703]
Medical Definition of avidity. : a characteristic of antibodies (such as antitoxins) that tends to enhance their rate or stability in binding with an antigen Antibody avidity is an average measure of the affinity of the antibodies for a particular antigen in a serum sample.âDominic F. Kelly, The New England Journal of Medicine, 21 Dec. 2005.
Originality is the quality of being new and inventive. A composer who writes a symphony to be played by car horns and cell phones shows great originality. When something is original, it is creative and not derived from something else. It's fresh. Originality refers to the quality of being original and new. Inventors are full of originality: they need to think of brand new ideas and products. A great artist is full of originality, especially when coming up with new and surprising types of art. If something is just like other things, it shows no originality. True originality is a rare thing.