moulted Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition verb. cast off hair or skin or horn or feathers Chiefly British. Example Sentence The duck moulted its feathers. Synonyms shed; exfoliate; slough; discard Antonyms grow Hear It! Say It! Write It! moulted Switch to cursive Start Share with your friends: