adjective /ˈfɹɪv.əl.əs/
, "There is no easy definition for the phrase frivolous lawsuit, but I imagine any claim for damages where the injuries are minimal or where the basis for the defendants liability is hard to believe, might qualify as frivolous." — Paul F. Waldner, President-Elect, Houston Trial Lawyers Association, Viewpoints, Houston Chronicle, August 31, 1996 ([ citation])
Wikipedia foundation.