Meaning ofmind-numbingin English

Adjective

1. extremely dull; lacking intellectual stimulation
   The mind-numbing lecture put the entire audience to sleep.
   Synonyms:

   tediousmonotonousdulluninterestingboringunstimulatingstultifying
   Antonyms:

   stimulatingengagingfascinatingintellectually challengingthought-provoking