Composed of 安堵 (relief) + 感 (feeling, sense). While 安堵 by itself means relief, adding 感 emphasizes the subjective, felt experience of that relief.
Common collocations
- 安堵感を覚える: to feel a sense of relief
- 安堵感に包まれる: to be wrapped in relief
- 安堵感が広がる: a sense of relief spreads
- 大きな安堵感: great relief
Similar words
- 安心: peace of mind (broader; can be a state rather than a moment)
- 安堵: relief (the emotion itself, without the 感 suffix)
- ほっとする: to feel relieved (colloquial, onomatopoeic expression)