/ Thesaurus / C Synonyms of contract under seal Find synonyms for: Noun1. sealed instrument, contract under seal, special contract, contractusage: a contract that is signed and has the (wax) seal of the signer attachedWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: profiterole Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language