The term "roly poly" is typically used to describe a small, round creature that can roll itself into a ball for protection. However, when looking for antonyms for this word, one might consider words that are the opposite of small, round, or rolling. Some options might include "tall and angular," "spiky and jagged," "solid and immovable" or "slim and delicate." These antonyms highlight the contrast between the soft, plump nature of a roly poly and other characteristics that are sharp or angular. Overall, exploring antonyms for the word "roly poly" can help to expand one's vocabulary and gain a deeper understanding of language.