Definition of beside oneself in English:

beside oneself

Overcome with worry or anger; distraught: she was beside herself with anguish
More example sentences
  • Their friends and family are beside themselves with worry and grief, and not having any power to do anything to ease the situation is incredibly frustrating.
  • Of course, as you can imagine, all the neighbouring nursery owners (this is a big area for horticulture) were beside themselves with worry.
  • Parents were beginning to arrive here at the gates, absolutely horrified, beside themselves with worry.
Synonyms
distraught, overcome, out of one's mind, frantic, desperate, distracted, at one's wits' end, frenzied, wound up, worked up; hysterical, unhinged, mad, crazed
See parent entry: beside

Definition of beside oneself in:

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Word of the day anomalous
Pronunciation: əˈnɒm(ə)ləs
adjective
deviating from what is standard, normal, or expected