1. the quality or state of being dotty; absent-mindedness or slight eccentricity
Usage: informal; chiefly British
2. the quality of being silly, confused, or not thinking clearly
Usage: informal

Examples

• Her dottiness was endearing; she often forgot where she had placed her glasses.
• The professor's dottiness was legendary among students who appreciated his absent-minded charm.
• There was a certain dottiness to his behavior that made him unpredictable.
• She attributed her dottiness to lack of sleep and too much coffee.
• His dottiness increased with age, though his wit remained sharp.
• The character's dottiness provided comic relief throughout the film.