Synonyms and Antonyms for Formidable

Following is a list of 150 synonym words and phrases that are related to formidable:

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3 Letter Words

big

4 Letter Words

harddiregrimhugevastneatsize

5 Letter Words

sternscaryharshstarkawfultoughgrossheftyjollyheavyproudgrandlargegreatgiantmajorswellacutesizedgravesheer

6 Letter Words

severefiercestrongmightydeadlylethalsuperblovelyuphillrobust

7 Letter Words

awesomedreadedfearfulamazingarduousheinousghastlyoneroushideousseriousimmensemassivespecialominousmammothsizable

8 Letter Words

alarmingterrificdauntingfearsomehorribleterribledreadfulhorrificgruesomeenormousexcitingcriticalgiganticcolossalpowerfulgorgeoussplendidfabulousdramaticenviablesizeabledazzlingstalwart

9 Letter Words

unnervingdifficultfrightfulappallingdemandinglaboriousstrenuousdangerouswonderfulmarvelousexcellentextensivebeautifulfantasticimportantbrilliantherculeanferocioustenaciousadmirablemasterfulmonstrousunrivaled

10 Letter Words

impressiveterrifyinghorrifyinghorrendousstaggeringmarvelloustremendousphenomenalincrediblerelentlessremarkablemonumentalprodigiousfearsomelystupendousdauntinglygargantuanpowerhousediminutivepugnaciousimplacableunbeatable

11 Letter Words

redoubtablefrighteningchallengingpainstakingspectacularexceptionaloutstandingintractablemagnificentunsurpassedsubstantialsignificantindomitableunstoppableinestimable

12 Letter Words

overwhelmingunbelievableconsiderableimpressivelymultifacetedunassailableirresistible

13 Letter Words

extraordinaryindefatigable

14 Letter Words

insurmountableunsurmountableunquestionable

Using this list of similar-meaning words, you can choose the best synonyms to replace formidable in your sentences.

Additionally, you'll find antonyms included, perfect for when you need the complete opposite meaning of formidable in your writing.