/ Thesaurus / H Synonyms of horseless carriage Find synonyms for: Noun1. horseless carriage, car, auto, automobile, machine, motorcarusage: an early term for an automobile; "when automobiles first replaced horse-drawn carriages they were called horseless carriages"WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: impetuous Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language