|Origin:||excruciate 'to cause great pain to' (16-21 centuries), from Latin excruciare, from cruciare 'to crucify', from crux 'cross'|
When I bend my arm, the pain is excruciating.
if something is excruciating, it is extremely unpleasant, for example because it is boring or embarrassing:
Helen described the events of the night before in excruciating detail.
His poetry is excruciatingly bad.