Question

obtuse a.愚笨的；不锐利的 obtuse (adj.) early 15c., "dull, blunted," from Middle French obtus (fem. obtuse), from Latin obtusus "blunted, dull," also used figuratively, past participle of obtundere "to beat against, make dull," from ob "against" (see ob-) + tundere "to beat," from PIE *(s)tud-e- "to beat, strike, push, thrust," from root *(s)teu- "to push, stick, knock, beat" (cognates: Latin tudes "hammer," Sanskrit tudati "he thrusts"). Sense of "stupid" is first found c.1500. Related: Obtusely; obtuseness. 【记】ob不 + tus- 尖→不锐利的,tusk tush, 长牙，獠牙；ob + 音：兔子，兔子的标志是兔牙，很锐利→不兔子，不像兔子那样灵活→笨；

Accepted Answer

[əb'tju:s] 【英】 adj. 愚笨的(dull or insensitive)；不锐利的(blunt)【考】 rectitude : transgress / calmness : restive / keenness : obtuse(正直不犯罪/安静不 烦躁/敏锐不愚笨)【例】 I am really obtuse on this. adj. 迟钝的; 不锐利的【记】读: 我被兔死, 我被兔子弄死了－迟钝的【类】rectitude: transgress = calmness: restive = keenness: obtuseliberal: parsimonious = propriety: impertinent正直不犯罪 = 安静不烦躁 = 敏锐不愚笨 = 慷慨的不是吝啬的 = 适当不是鲁莽的restiveness: calmness = keenness: obtuseness不安不平静 = 敏锐不迟钝【反】insightful(adj 富有洞察力的); obtuseness－acumen(n 敏锐)

单词	obtuse
音标	[əb'tju:s]
解释	a.愚笨的；不锐利的
红宝书	【英】 adj. 愚笨的(dull or insensitive)；不锐利的(blunt) 【考】 rectitude : transgress / calmness : restive / keenness : obtuse(正直不犯罪/安静不烦躁/敏锐不愚笨) 【例】 I am really obtuse on this.
字源	obtuse (adj.) early 15c., "dull, blunted," from Middle French obtus (fem. obtuse), from Latin obtusus "blunted, dull," also used figuratively, past participle of obtundere "to beat against, make dull," from ob "against" (see ob-) + tundere "to beat," from PIE (s)tud-e- "to beat, strike, push, thrust," from root (s)teu- "to push, stick, knock, beat" (cognates: Latin tudes "hammer," Sanskrit tudati "he thrusts"). Sense of "stupid" is first found c.1500. Related: Obtusely; obtuseness.
不择手段背单词	adj. 迟钝的; 不锐利的【记】读: 我被兔死, 我被兔子弄死了－迟钝的【类】rectitude: transgress = calmness: restive = keenness: obtuseliberal: parsimonious = propriety: impertinent正直不犯罪 = 安静不烦躁 = 敏锐不愚笨 = 慷慨的不是吝啬的 = 适当不是鲁莽的restiveness: calmness = keenness: obtuseness不安不平静 = 敏锐不迟钝【反】insightful(adj 富有洞察力的); obtuseness－acumen(n 敏锐)
趣味全助记	【记】ob不 + tus- 尖→不锐利的,tusk tush, 长牙，獠牙；ob + 音：兔子，兔子的标志是兔牙，很锐利→不兔子，不像兔子那样灵活→笨；

Obtuse Adj Transgress Calmness Restive Latin Dull Push