CLUTTER definition: 1. to cover a surface, or to fill a place with things that are not tidy or well organized: 2. a…. Learn more. Clutter is a lot of things in an untidy state, especially things that are not useful or necessary. Learn how to use clutter as a noun or a verb, and see synonyms, pronunciation, and usage examples from Collins English Dictionary. clutter meaning, definition, what is clutter: to cover or fill a space or room with to...: Learn more. Clutter definition: to fill or litter with things in a disorderly manner.. See examples of CLUTTER used in a sentence.
