/ Thesaurus / R Synonyms of robert macgregor Find synonyms for: Noun1. MacGregor, Robert MacGregor, Rob Royusage: Scottish clan leader and outlaw who was the subject of a 1817 novel by Sir Walter Scott (1671-1734)WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: immense Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language