incidence — the rate or range of occurrence or influence of something, especially of something unwanted: the high incidence of heart disease in men over 40.
willingness — disposed or consenting; inclined: willing to go along.
Four-or-more syllable rhymes
certificate — A certificate is an official document stating that particular facts are true.
coincidence — A coincidence is when two or more similar or related events occur at the same time by chance and without any planning.
distinctiveness — serving to distinguish; characteristic; distinguishing: the distinctive stripes of the zebra.
duplicitous — marked or characterized by duplicity.
permissiveness — habitually or characteristically accepting or tolerant of something, as social behavior or linguistic usage, that others might disapprove or forbid.
precipitous — of the nature of or characterized by precipices: a precipitous wall of rock.