1. most absent-minded, disorganized, or lacking focus
Usage: informal; superlative form of scatty

Examples

• She’s the scattiest person I know, always losing her keys.
• Of all my friends, Tom is the scattiest when it comes to remembering appointments.
• My scattiest moments happen when I’m stressed about exams.
• The scattiest student in class somehow managed to ace the test.
• Even on her scattiest days, she still gets the job done.
• He’s at his scattiest in the morning before coffee.