Usage examples "trifling":
- Then you mean to say that you believe I've been trifling with the feelings of this child? - "Indian Summer", William D. Howells.
- The people who had come from Kiangan rushed to where I was and took their stand in front of and around me, and told me to stay there and that they would protect me from any harm; all of which, as may well be supposed, produced no trifling amount of warmth in my feelings toward them. - "The Head Hunters of Northern Luzon From Ifugao to Kalinga A Ride Through the Mountains of Northern Luzon With an Appendix on the Independence of the Philippines", Cornelis De Witt Willcox.
- Excuse me, but such trifling pains me. - "Words of Cheer for the Tempted, the Toiling, and the Sorrowing", T. S. Arthur.