Eternal/ɪˈtɜːrnl/ Definition 1 of 4Pro Tip 1/3Literal Infinity Use 'eternal' to describe something that truly has no end, not just something that lasts a long time. Their love was eternal. Pro Tip 2/3Poetic Emphasis 'Eternal' can add dramatic effect in poetry or romantic contexts, highlighting limitless time. He gazed into the stars, yearning for eternal peace. Pro Tip 3/3Exaggeration Caution Avoid using 'eternal' for exaggerating temporary situations; it's often too strong. Waiting an hour isn't 'an eternal delay.'