overoptimistic
/ˌoʊvərˌɑptəˈmɪstɪk/
adjective
- Too hopeful or confident about the future, often ignoring possible difficulties.
- It's okay to be hopeful, but being overoptimistic can lead to disappointment.
- The weather forecast was overoptimistic; it rained all afternoon.
- She was overoptimistic about how quickly she could finish the project.
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