/ Thesaurus / S Synonyms of sinking spell Find synonyms for: Noun1. sinking spell, decline, diminutionusage: a temporary decline in health or valueWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: loathe Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language