We found 2 dictionaries that define the word beside himself:

General (1 matching dictionary)

1. beside himself: Merriam-Webster

Miscellaneous (1 matching dictionary)

2. AbbreviationZ (No longer online)

▸ Words similar to beside himself ▸ Usage examples for beside himself ▸ Idioms related to beside himself ▸ Wikipedia articles (New!) ▸ Words that often appear near beside himself ▸ Rhymes of beside himself ▸ Invented words related to beside himself