/ Thesaurus / I Synonyms of iceberg lettuce Find synonyms for: Noun1. crisphead lettuce, iceberg lettuce, iceberg, lettuceusage: lettuce with crisp tightly packed light-green leaves in a firm head; "iceberg is still the most popular lettuce"WordNet 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