Trifling
/ˈtraɪ.flɪŋ/ adjective easySomething trifling is so minor or insignificant that it barely deserves attention.
He dismissed the missing dollar as a trifling error, not worth holding up the entire audit.
Memory Trick
Trifling contains 'trifle,' a small, light dessert - both the treat and the adjective describe something small and inconsequential.