/ Thesaurus / I Synonyms of invincible armada Find synonyms for: Noun1. Spanish Armada, Invincible Armadausage: the great fleet sent from Spain against England by Philip II in 1588WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: penury Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language