pearly everlasting pear·lye·ver·lasting uncommon noun 1. American everlasting having foliage with soft wooly hairs and corymbose heads with pearly white bracts Synonymspearly everlastingcottonweedAnaphalis margaritacea Related words Broader terms everlasting Parts Anaphalis WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.