About
钝 (traditional form: 鈍) is a phono-semantic compound. The left radical 钅 (金 in traditional form) indicates the semantic category of metal, relating to the character's original meaning of a blunt metal blade or tool. The right component 屯 provides the pronunciation. Initially describing the physical dullness of a cutting instrument, the meaning later extended metaphorically to refer to mental slowness, sluggishness, or an unresponsive temperament. This expansion from a tangible physical quality to an abstract mental trait defines its core semantic development.
Etymology Hide
Example Sentences Hide
这把刀很钝。
他的反应有点迟钝。
用钝器敲击并不安全。
钝角大于九十度。
长期的孤独会让人感觉钝化。
他对批评有一种有益的钝感力。
疼痛感由尖锐转为迟钝。
金属表面经过处理会发生钝化反应。