causing fear, apprehension, or dread: a formidable opponent.
of discouraging or awesome strength, size, difficulty, etc.; intimidating: a formidable problem.
arousing feelings of awe or admiration because of grandeur, strength, etc.
of great strength; forceful; powerful: formidable opposition to the proposal.
Origin of formidable
1400–50; late Middle English < French < Latin formīdābilis causing fear, equivalent to formīd- (stem of formīdāre to fear) + -ābilis -able
Synonyms for formidable
Antonyms for formidable
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
arousing or likely to inspire fear or dread
extremely difficult to defeat, overcome, manage, etca formidable problem
tending to inspire awe or admiration because of great size, strength, excellence, etc
Word Origin for formidable
C15: from Latin formīdābilis, from formīdāre to dread, from formīdō fear
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
mid-15c., from Middle French formidable (15c.), from Latin formidabilis "causing fear, terrible," from formidare "to fear," from formido "fearfulness, fear, terror, dread." Related: Formidably.
Online Etymology Dictionary, © 2010 Douglas Harper