Hide Feature Image on Page but not other images

So I have a feature image set on a page so that it will show up in the slider on the homepage but I don’t want this feature page to show up on the actual page but I want to still add images to that page. I have my css as below but it’s hiding all images on that page, not just the feature image. I don’t know how to just pinpoint the feature image and not all images as I believe the feature image doesn’t have it’s own class or id to separate it. Is there a way to hide the feature image without hiding all images?

.page-id-33 img {
display: none;
}

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