Answer: flatly

AnswerCrossword Clue
FLATLYPoint-blank
flatlyShowing little interest or emotion
flatlyIn a firm and unequivocal manner; absolutely
flatlyFLAT, having a smooth level surface
flatlyIn a smooth and even way
flatlyWithout marked contrast of light and dark
FLATLYHow some things are denied
FLATLYUnequivocally
FLATLYOne way to deny something
FLATLYWay to refuse
FLATLYCategorically
FLATLYWithout qualification
FLATLYUnmistakably
FLATLYCompletely
FLATLYDownrightly.
FLATLYIn no uncertain terms
FLATLYWithout hesitation
FLATLYIn a firm and unequivocal manner
FLATLYIn a monotonous way