/ Thesaurus / B Synonyms of boletus frostii Find synonyms for: Noun1. Frost's bolete, Boletus frostii, boleteusage: a fungus with a red cap and a red coarsely reticulate stalkWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: fabricate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language