1. plural of flatness; the quality or state of being flat or level
2. plural of flatness; lack of liveliness, interest, or emotional depth
3. plural of flatness; in music, the quality of being below the correct pitch
Usage: musical

Examples

• The flatnesses of the desert landscape stretched endlessly to the horizon.
• Critics complained about the flatnesses in the actor's performance throughout the film.
• The singer's flatnesses during the high notes were noticeable to the trained ear.
• The architect appreciated the flatnesses of the concrete surface.
• The dialogue suffered from several flatnesses that made the scene feel uninspired.
• The painter worked to eliminate flatnesses in the composition by adding depth and shadow.