Trifle/ˈtraɪfl/ Definition 1 of 4Pro Tip 1/2Minimizing Expression Used to downplay an issue or object, suggesting it's not a big deal. Losing that game was a trifle in the grand scheme. Pro Tip 2/2Not Worth Mentioning Indicates something is so unimportant it's almost not worth talking about. A few mistakes here and there are a trifle.