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Definition of over-optimistic adjective from the Oxford Advanced Learner's Dictionary

over-optimistic

adjective
 
/ˌəʊvər ˌɒptɪˈmɪstɪk/
 
/ˌəʊvər ˌɑːptɪˈmɪstɪk/
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  1. too confident that something will be successful
    • I'm not over-optimistic about my chances of getting the job.
    Topics Successc2, Personal qualitiesc2
  2. showing more confidence that something will be successful than is shown to be right or reasonable by later events
    • The sales forecasts turned out to be over-optimistic.
    Topics Difficulty and failurec2
aspiration
noun
 
 
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