1. not having a lining or inner layer of material
2. having no lines or wrinkles
3. having no ruled lines printed on it

Examples

• She wore an unlined jacket that was perfect for the mild weather.
• The unlined curtains let more light through than expected.
• His unlined face made him look much younger than his age.
• The baby’s unlined skin was perfectly smooth.
• I prefer unlined paper for drawing and sketching.
• The notebook had unlined pages for creative writing.
• Her unlined leather gloves were soft but not very warm.