The meaning of HAMPER is to restrict the movement of by bonds or obstacles : impede. How to use hamper in a sentence. Synonym Discussion of Hamper. Hamper can be a verb meaning to prevent or hinder movement or progress, or a noun meaning a large basket or case. Learn the origin, synonyms, and usage of hamper with examples from various sources. HAMPER definition: 1. to prevent someone doing something easily: 2. a large, rectangular container with a lid: 3. a…. Learn more. Master the word "HAMPER" in English: definitions, translations, synonyms, pronunciations, examples, and grammar insights - all in one complete resource.