/ Thesaurus / R Synonyms of reinforcer Find synonyms for: Noun1. reinforcing stimulus, reinforcer, reinforcement, stimulation, stimulus, stimulant, inputusage: (psychology) a stimulus that strengthens or weakens the behavior that produced itWordNet 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