containerful Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition noun. the amount a container can hold. Example Sentence The pitcher was filled to the brim with a containerful of lemonade. More Example Sentences He poured water until it reached containerful. Synonyms capacity; volume; load Antonyms empty; devoid Hear It! Say It! Write It! containerful Switch to cursive Start Share with your friends: