Meaning of the word unrealistic in English

What does unrealistic mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

unrealistic

US /ˌʌn.riː.əˈlɪs.tɪk/
UK /ˌʌn.rɪəˈlɪs.tɪk/
"unrealistic" picture

Adjective

not realistic; not based on facts or reality

Example:
It's unrealistic to expect to become a millionaire overnight.
Her expectations for the project were completely unrealistic.