ex ‧ cru ‧ ci ‧ at ‧ ing /ɪkˈskruːʃieɪtɪŋ/ BrE AmE adjective
[ Date: 1500-1600 ; Origin: excruciate 'to cause great pain to' (16-21 centuries) , from Latin excruciare , from cruciare 'to crucify' , from crux 'cross' ]
1 . extremely painful SYN painful :
When I bend my arm, the pain is excruciating.
2 . if something is excruciating, it is extremely unpleasant, for example because it is boring or embarrassing SYN agonizing :
Helen described the events of the night before in excruciating detail.
—excruciatingly adverb :
His poetry is excruciatingly bad.