flatly[adverb]Synonyms: absolutely, categorically, completely, positively, unhesitatingly 
 [TahlilGaran] English Synonym Dictionary ▲
 flat‧ly /ˈflætli/ 
 adverb [
Word Family: noun: 
flat, 
flatness; 
adverb: 
flat, 
flatly; 
verb: 
flatten; 
adjective: 
flat]
1.  flatly refuse/deny/oppose etc something to say something in a direct and definite way that is not likely to change: 
 He flatly denied ever having met the woman.2.
 He flatly denied ever having met the woman.2.  without showing any emotion: 
 ‘Aunt Alicia has changed her will,’ she said flatly.
 ‘Aunt Alicia has changed her will,’ she said flatly.  [TahlilGaran] Dictionary of Contemporary English ▲