What is the best meaning of "Lackadaisical"?

• The required answer is - Lazy and unenthusiastic.

• Lackadaisical (adjective)
- English Meaning: lacking enthusiasm and determination; carelessly lazy.
- Bangla Meaning: অবসাদগ্রস্ত; উৎসাহহীন; ক্লান্ত মনে হয় এমন।

• Ex. Sentence:
- Her lackadaisical attitude toward her studies resulted in poor grades.
- The coach was frustrated by the team's lackadaisical performance during practice.
- He gave a lackadaisical shrug when asked about the missed deadline.

Source:
1. Oxford Dictionary.
2. Merriam-Webster Dictionary.