White-crowned is an adjective that's often used to describe something that has a white crown or head. However, there are plenty of other words that can be used in place of white-crowned to convey the same meaning. Some suitable synonyms for white-crowned include snowy, pale, milky-white, ivory-hued, chalky, and alabaster. These words can also be used interchangeably to describe something that's predominantly white or has a whitish coloration, such as a white-crowned sparrow or a white-crowned monarch butterfly. By using these synonyms, you can add variation and interest to your writing while conveying the same meaning.