Rossetti ros·setti US/roʊˈsɛti/ rare noun 1. English poet and painter who was a leader of the Pre-Raphaelites (1828-1882) SynonymsDante Gabriel Rossetti Related words Broader terms Pre-Raphaelite WordNet 2.1 (Princeton University). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved.