/əbˈtjuːsnɪs/ n.1.<正式>(insensitiveness)迟钝；不敏感
Naivety bordering on obtuseness helped sustain his faith.近乎鲁钝的天真使他坚守自己的信仰。
2.【数】+of angle钝性
the obtuseness of the angle呈钝角
3.+of triangle钝角性
The triangles have a degree of obtuseness.这些三角形都是钝角的。
4.<古>(dullness)隐隐；不剧烈
the unfeeling obtuseness无感觉
The worst symptom is an obtuseness, a sort of numbness.最糟糕的症状是没有明显的感觉, 也就是一种麻木感。
5.【植】+of leaf钝；圆头