Breadcrumb Home > Thesaurus > A Synonyms of asteroid Find synonyms for: Noun 1. asteroid, minor planet, planetoid usage: any of numerous small celestial bodies composed of rock and metal that move around the sun (mainly between the orbits of Mars and Jupiter) Adjective 1. asteroid, star-shaped, angular (vs. rounded), angulate usage: shaped like a star WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of asteroid (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Hanukkah Origins of the Christmas Holiday Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 Krampus: The Christmas Devil Kwanzaa ✖ Related Content Daily Word Quiz: neologism Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language