unimagine

From un- +‎ imagine.

• (Received Pronunciation, General American) IPA^(key): /ʌn.ɪˈmæd͡ʒ.ɪn/

• Audio (General American):

  (file)

unimagine (third-person singular simple present unimagines, present participle unimagining, simple past and past participle unimagined)

1. (transitive) To dismiss from the imagination; to make as though never imagined.

• undream
• unthink