Here's why:
* Dispel means to "cause to vanish or disappear" or "to clear away (doubts, fears, etc.)".
* Display means "to show or exhibit something openly or prominently."
Antonyms for dispel could include:
* Spread
* Promote
* Foster
* Encourage
* Maintain
Examples:
* Dispel: "The sun dispelled the morning fog."
* Display: "The museum displayed a collection of ancient artifacts."
Let me know if you have any other word questions!