1. somewhat flat; having a shape or surface that is nearly flat but not completely flat
Usage: informal; comparative form: more flattish; superlative: most flattish

Examples

• The flattish roof of the modern building contrasted with the pitched roofs nearby.
• She preferred a flattish pillow for sleeping.
• The landscape in that region is quite flattish with few hills.
• The stone had a flattish surface that made it easy to skip across the water.
• The cake turned out flattish instead of fluffy as intended.
• The flattish design of the phone fits easily in a pocket.