
| 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 |