Insidious



GRE Barron

解释

GRE 红宝书

• adj.隐藏诡计的
• ［英］ adj.隐藏诡计的 ( more dangerous than seems evident)
• ［记］ in+ ( 里面) +sid ( 坐) +ious -> ( 祸害) 坐在里面的
• ［同］ 同根词: assiduous ( 勤勉的) ; preside ( 主持)
• ［例］ The glib salesman sells products in some insidious way.

Webster Collegiate

adjective

• Etymology: Latin insidiosus, from insidiae ambush, from insidēre to sit in, sit on, from in- + sedēre to sit — more at sit
• Date: 1545
• 1.
  • a. awaiting a chance to entrap ; treacherous
  • b. harmful but enticing ; seductive <insidious drugs>
• 2.
  • a. having a gradual and cumulative effect ; subtle <the insidious pressures of modern life>
  • b. of a disease developing so gradually as to be well established before becoming apparent
• ? insidiously adverb
• ? insidiousness noun

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