underburden Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition verb. to reduce the burden on someone or something. Example Sentence The underburden protects the soil from erosion. More Example Sentences They hope to underburden the students this year. Synonyms lighten; relieve; ease Antonyms burden; overload; weigh down Hear It! Say It! Write It! underburden Switch to cursive Start Share with your friends: