Simple Definition of formidable
: very powerful or strong : deserving serious attention and respect
: very difficult to deal with
: large or impressive in size or amount
Full Definition of formidable
Examples of formidable
She was known throughout Manchester as a formidable woman, and being educated had only piled more formidability on top of what she had been born with. —Edward P. Jones, The Known World, 2003
The technology was formidable: using two and a half million rivets, 300 steeplejacks working flat out would run it up in the space of two years … —Alistair Horne, Seven Ages of Paris, 2002
Alta is reached by a hairpin road that climbs steadily upward—a ride of thirty minutes or so, depending on road and weather conditions—through some of the most formidable mountain scenery in the country. —Cynthia Zarin, New Yorker, 23 Mar. 1992
The mountains were a formidable barrier.
He has mastered a formidable amount of material.
Origin of formidable
Middle English, from Latin formidabilis, from formidare to fear, from formido terror, bogey; akin to Greek mormō bogey
First Known Use: 15th century
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