moulted Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition verb. to lose old feathers or skin to grow new ones. Example Sentence The duck moulted its feathers. More Example Sentences She noticed the cat moulted its fur. Synonyms shed; cast off; change Antonyms grow Hear It! Say It! Write It! moulted Switch to cursive Start Share with your friends: