| dùn | blunt/stupid |
| 钝 | blunt stupid |
| 钝刀 | dull knife |
| 钝化 | passivation; inactivation; passivating; deactivation; passivate; inactivating; inaction |
| 钝化剂 | [Chemistry] a passivator; a passivant |
| 钝吻鳄 | alligator |
| 钝响 | a deep and dull sound |
| 钝器 | blunt |
| 钝器伤 | blunt force injury |
| 钝性物质 | inactive substance |
| 钝的 | obtuse; blunt; pointless; unpointed; dull; logy; unsharp |
| 钝角 | obtuse angle |
| 钝角三角形 | [Mathematics] an obtuse triangle |