What is Trivial?

Legal Definition
Of small importance. It is a rule in equity that a demurrer will lie to a bill on the ground of the triviality of the matter in dispute, as being below the dignity of the court. 4 Bouv. Inst. n. 4237. See Hopk. R. 112; 4 John. Ch. 183; 4 Paige, 364.
-- Bouviers Law Dictionary
Legal Definition
Trifling; Inconsiderable; of small worth or importance, in equity, a demurrer will lie to a hill on the ground of the triviality of the matter in dispute, as being below the dignity of the court. 4 Bouv. Inst. no. 4237.
-- Black's Law Dictionary