Liberal Dictionary English Dictionary
adverb
- absolutely and without qualification: Our offer was flatly rejected.
- without vitality or animation: He spoke flatly about the death of his wife.
- in a level, even, or smooth manner: Apply the tape flatly to the pipe.
early 15c., in a literal sense, from flat (adj.) + -ly (2). Meaning “in a plain manner” is from 1560s; sense of “in a dull manner” is from 1640s.