/ Thesaurus / F Synonyms of first come first serve Find synonyms for: Adjective1. first-come-first-serve(predicate), rush, unreserved (vs. reserved)usage: not accepting reservationsWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: grimace Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language