Definition of Frivolous
Of little weight or importance. A pleading is "frivolous” when it is clearly insufficient on its face, and does not controvert the material points of the opposite pleading, and is presumably interposed for mere purposes of delay or to embarrass the opponent. A claim or defense is frivolous if a proponent can present no rational argument based upon the evidence or law in support of that claim or defense. Liebowitz v. Aimexco Inc., Colo.App., 701 P.2d 140, 142. Frivolous pleadings may be amended to proper form, or ordered stricken, under federal and state Rules of Civil Procedure.Frivolous. Of little weight or importance. A pleading is "frivolous” when it is clearly insufficient on its face, and does not controvert the material points of the opposite pleading, and is presumably interposed for mere purposes of delay or to embarrass the opponent. A claim or defense is frivolous if a proponent can present no rational argument based upon the evidence or law in support of that claim or defense. Liebowitz v. Aimexco Inc., Colo.App., 701 P.2d 140, 142. Frivolous pleadings may be amended to proper form, or ordered stricken, under federal and state Rules of Civil Procedure.
Frivolous action. Groundless lawsuit with little prospect of success; often brought to embarrass or annoy the defendant. See Failure to state cause of action.
Frivolous appeal. One in which no justiciable question has been presented and appeal is readily recognizable as devoid of merit in that there is little prospect that it can ever succeed. Brooks v. General Motors Assembly Division, Mo.App., 527 S.W.2d 50, 53. In federal practice, if a court of appeals determines that an appeal is "frivolous,” it may award damages and single or double costs to the appellee. Fed.R.App.P. 38.
That's the definition of Frivolous in Black's Law Dictionary 6th Edition. Courtesy of Cekhukum.com.