/ Thesaurus / H Synonyms of heir at law Find synonyms for: Noun1. heir-at-law, heir, inheritor, heritorusage: the person legally entitled to inherit the property of someone who dies intestateWordNet 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