flatly

adverb3

1. •
   In a physically flat or level manner.

   • He bent over the old woman again, with his ear turned flatly to her lips and then to the region of her heart. — 1938
2. •
   In a definite manner; in a manner showing complete certainty.

   • It was an accusation that he flatly denied.
3. •
   In a manner that shows no emotion.

   • He replied flatly to the policeman's questions.