molts Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition verb. when an animal sheds its old feathers, hair, or skin to make way for new growth. Example Sentence The bird molts its feathers every year. Synonyms shed; slough; cast off Antonyms grow; retain Hear It! Say It! Write It! molts Switch to cursive Start Share with your friends: