/ Thesaurus / C Synonyms of custodial account Find synonyms for: Noun1. custodial account, cash accountusage: a brokerage firm account that parents have created for a minorWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: brine Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language