Meaning of muddleheaded

1. She was so muddleheaded that she forgot to turn off the stove before leaving the house.
2. His muddleheaded thinking led him to make several mistakes on the exam.
3. I can't believe how muddleheaded I was to book my flight on the wrong day.
4. The politician's muddleheaded response to the question only confused the audience further.
5. After a long day of work, I often feel muddleheaded and struggle to focus on tasks.
6. The muddleheaded decision to invest in the failing company cost the investors millions of dollars.
7. Despite his muddleheadedness, he managed to successfully navigate through the unfamiliar city.
8. The muddleheaded professor often confused his students with convoluted lectures.
9. Her muddleheadedness made it difficult for her to follow simple instructions.
10. The muddleheaded driver caused a major accident by running a red light.