An antonym is a word that has the opposite meaning of another word. For example, the antonym of "hot" is "cold" and the antonym of "happy" is "sad".make this like a 8th grader wrote it

An antonym is like the total opposite of a word. So, if you have a word that means one thing, the antonym would mean the complete opposite. It's like saying "up" and "down" or "big" and "small". It's pretty cool how words can have opposites, right?