Obtuse



GRE 蓝宝 Barron

解释

GRE 红宝书

• adj. 愚笨的; 不锐利的
• ［英］ adj. 愚笨的 ( dull or insensitive) ; 不锐利的 ( blunt)
• ［类］ 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.

Webster Collegiate

adjective (obtuser; -est)

• Etymology: Middle English, from Latin obtusus blunt, dull, from past participle of obtundere to beat against, blunt, from ob- against + tundere to beat — more at ob-, contusion
• Date: 15th century
• 1.
  • a. not pointed or acute ; blunt
  • b.
    • (1) of an angle exceeding 90 degrees but less than 180 degrees
    • (2) having an obtuse angle <an obtuse triangle> — see triangle illustration
  • c. of a leaf rounded at the free end
• 2.
  • a. lacking sharpness or quickness of sensibility or intellect ; insensitive, stupid
  • b. difficult to comprehend ; not clear or precise in thought or expression
• Synonyms: see dull
• ? obtusely adverb
• ? obtuseness noun

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