Definition of “unrealistic” - English Dictionary

“unrealistic” in British English

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uk /ˌʌn.rɪəˈlɪs.tɪk/ us /ˌʌn.riː.əˈlɪs.tɪk/

B2 having a wrong idea of what is likely to happen or of what you can really do; not based on facts:

I think these sales forecasts are unrealistic, considering how slow sales are at present.
[ + to infinitive ] It's unrealistic to expect an answer before next week.

More examples

  • I think she had unrealistic expectations of motherhood.
  • Expecting four year old children to sit quietly for a whole hour is just completely unrealistic.
  • I always have a totally unrealistic idea of what I can fit into a day.
  • Some parents have completely unrealistic expectations of their children.
  • It's unrealistic to expect him to make a full recovery overnight.
adverb uk /ˌʌn.rɪəˈlɪs.tɪ.kəl.i/ us /ˌʌn.riː.əˈlɪs.tɪ.kəl.i/

(Definition of “unrealistic” from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

“unrealistic” in American English

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us /ʌnˌri·əˈlɪs·tɪk/

not reasonable, or not likely to be achieved:

We’re placing unrealistic demands on our schools.

(Definition of “unrealistic” from the Cambridge Academic Content Dictionary © Cambridge University Press)