* Downplay: To make something seem less important or significant.
* Minimize: To reduce something to its smallest possible size or importance.
* De-emphasize: To reduce the importance of something.
* Obscure: To make something difficult to see or understand.
* Diminish: To make something smaller or less important.
* Suppress: To prevent something from being expressed or noticed.
For example:
* Accentuate the positive features of your product. --> Downplay the negative aspects of your product.
* Accentuate the differences between the two groups. --> Minimize the differences between the two groups.
* Accentuate your best qualities. --> De-emphasize your weaknesses.
* Accentuate the beauty of the scenery. --> Obscure the imperfections of the landscape.
The best antonym for accentuate will depend on the specific meaning you want to convey.