/ Thesaurus / P Synonyms of pith hat Find synonyms for: Noun1. pith hat, pith helmet, sun helmet, topee, topi, sunhat, sun hatusage: a lightweight hat worn in tropical countries for protection from the sunWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: diaphanous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language