Origin: 1400–50; late Middle English <
French <
Latin formīdābilis causing fear, equivalent to
formīd- (stem of
formīdāre to fear) +
-ābilis -able Related forms for·mi·da·ble·ness, for·mi·da·bil·i·ty, noun
for·mi·da·bly, adverb
non·for·mi·da·bil·i·ty, noun
non·for·mi·da·ble, adjective
non·for·mi·da·ble·ness, noun
non·for·mi·da·bly, adverb
qua·si-for·mi·da·ble, adjective
qua·si-for·mi·da·bly, adverb
su·per·for·mi·da·ble, adjective
su·per·for·mi·da·ble·ness, noun
su·per·for·mi·da·bly, adverb
un·for·mi·da·ble, adjective
un·for·mi·da·ble·ness, noun
un·for·mi·da·bly, adverb
Synonyms
1. dreadful, appalling, threatening, menacing, fearful, frightful, horrible.
Antonyms
1. pleasant.