Thesaurus
Synonyms & Antonyms of formidable
1
causing fear
- a formidable, irascible old man who frightened the neighborhood children
Synonyms for formidable
Words Related to formidable
Near Antonyms for formidable
2
requiring considerable physical or mental effort
- running a marathon is a formidable undertaking
Synonyms for formidable
- arduous,
- Augean,
- backbreaking,
- challenging,
- demanding,
- difficult,
- effortful,
- exacting,
- grueling
- (or gruelling),
- hard,
- heavy,
- hellacious,
- herculean,
- killer,
- laborious,
- moiling,
- murderous,
- pick-and-shovel,
- rigorous,
- rough,
- rugged,
- severe,
- stiff,
- strenuous,
- sweaty,
- tall,
- testing,
- toilsome,
- tough,
- uphill
Words Related to formidable
Near Antonyms for formidable
Antonyms for formidable
- cheap,
- easy,
- effortless,
- facile,
- light,
- mindless,
- simple,
- soft,
- undemanding
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“Formidable.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/formidable. Accessed 3 Mar. 2021.
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Time Traveler for formidable
The first known use of formidable was in the 15th century
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