roundsters Get Printable Handwriting Hear It! Say It! Write It! Learn It! Spelling Test Definition plural noun. a type of round object or person. Example Sentence He is permitted roundsters on ring line at his next turn. More Example Sentences The roundsters rolled down the hill. Synonyms circle; sphere; orb Antonyms blocks Hear It! Say It! Write It! roundsters Switch to cursive Start Share with your friends: