CLUTTER meaning: 1. (a lot of objects in) a state of being untidy: 2. to fill something in an untidy or badly…. Learn more. Clutter definition: to fill or litter with things in a disorderly manner.. See examples of CLUTTER used in a sentence. Clutter is a lot of things in an untidy state, especially things that are not necessary or are not being used. Learn how to pronounce, use and avoid clutter with the Oxford Advanced Learner's Dictionary app. The meaning of CLUTTER is to run in disorder. How to use clutter in a sentence.
