FORMIDABLE: Synonyms and Related Words. What is Another Word for FORMIDABLE?
The synonyms and related words of “Formidable” are: redoubtable, unnerving, intimidating, forbidding, daunting, alarming, frightening, terrifying, petrifying, horrifying, chilling, disturbing, disquieting, dreadful, brooding, awesome, fearsome, ominous, foreboding, sinister, menacing, threatening, dangerous, onerous, arduous, taxing, difficult, hard, heavy, laborious, burdensome, strenuous, vigorous, stiff, uphill, relentless, herculean, monumental, colossal, capable and 28 more.