At a glance
～あまり means "so much (of a feeling or state) that...". The first part names a feeling or state that goes too far, and the second part gives a result that is usually unwanted or out of the speaker's control.
Noun + のあまり、[result]
な-adj + なあまり、[result]
Verb (dictionary form) + あまり、[result]
心配のあまり、眠れませんでした。 I was so worried that I couldn't sleep.
How to form it
| Attaches to | Form | Example |
|---|---|---|
| Noun | Noun + のあまり | 心配のあまり |
| な-adjective | な-adj + なあまり | 熱心なあまり |
| い-adjective | Noun form (～さ) + のあまり (usual choice) | 嬉しさのあまり |
| Verb | Dictionary form + あまり | 気にするあまり |
Register: somewhat formal. It is common in writing and careful speech.