flat ‧ ly /ˈflætli/ BrE AmE 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 . without showing any emotion:
‘Aunt Alicia has changed her will,’ she said flatly.