Big
Big adjective - Having great meaning or lasting effect.
Formidable and big are semantically related. In some cases you can use "Formidable" instead an adjective "Big".
Nearby Word: bigness
Formidable
Formidable adjective - Causing fear.
Big and formidable are semantically related. Sometimes you can use "Big" instead an adjective "Formidable".
Nearby Word: formidably
Mutual synonyms
Both words in one sentence
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However, at 18 feet from wingtip to wingtip, it's still pretty big and formidable.
Source: Video Game / Saurian -
Subverted with the monkey king's castle- it just looks big from a distance; it's actually a cardboard cut out made to look formidable.
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Previously portrayed as formidable opponents of the Autobots, Cyclonus and Scourge were reduced to bumbling comic reliefs - Trying to use a big rock to take out Rodimus Prime (Who was busy in a physical struggle with Galvatron), only to hit Galvatron in the face instead.
Source: Anime / Transformers Headmasters
Cite this Source
Formidable and Big. (2016). Retrieved 2026, August 07, from https://thesaurus.plus/related/big/formidable
Big & Formidable. N.p., 2016. Web. 07 Aug. 2026. <https://thesaurus.plus/related/big/formidable>.
Formidable or Big. 2016. Accessed August 07, 2026. https://thesaurus.plus/related/big/formidable.
Google Ngram Viewer shows how "big" and "formidable" have occurred on timeline