child's play Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition noun. 1 any undertaking that is easy to do; 2 activity by children that is guided more by imagination than by fixed rules Example Sentence The spelling bee was child's play. Synonyms cinch; breeze; picnic; snap Antonyms work Hear It! Say It! Write It! child's play Switch to cursive Start Share with your friends: