Question

insidious adj.阴险的 Insidious is related to the Latin noun, īnsidiae meaning "ambush" which comes from the Latin verb, īnsidēre "to lie in wait for." This is very fitting as an insidious rumor or problem is one whose negative effect is not realized until the damage is already done. Similarly, an insidious disease develops internally without symptoms, so that you don't realize right away that you are sick. ★☆☆☆☆ 2004.2

Accepted Answer

[in'sidiəs] If something is slowly and secretly causing harm, it's insidious — like the rumors no one seems to listen to until suddenly someone's reputation is ruined. But one insidious form continues to thrive: alphabetism. 1[ADJ-GRADED 能被表示程度的副词或介词词组修饰的形容词]隐伏的；潜在的；不知不觉间加剧的 Something that is insidious is unpleasant or dangerous and develops gradually without being noticed. The changes are insidious, and will not produce a noticeable effect for 15 to 20 years...变化是悄然发生的，15 到 20 年间不会产生明显影响。They focus on overt discrimination rather than insidious aspects of racism.他们关注的是公开的歧视，而不是种族主义的一些潜在问题。insidiouslyDelusions are sometimes insidiously destructive.妄想有时也具有潜在的破坏性。

英语单词	insidious
英美音标	[in'sidiəs]
中文释义	adj.阴险的
vocab简明	If something is slowly and secretly causing harm, it's insidious — like the rumors no one seems to listen to until suddenly someone's reputation is ruined.
vocab扩展	Insidious is related to the Latin noun, īnsidiae meaning "ambush" which comes from the Latin verb, īnsidēre "to lie in wait for." This is very fitting as an insidious rumor or problem is one whose negative effect is not realized until the damage is already done. Similarly, an insidious disease develops internally without symptoms, so that you don't realize right away that you are sick.
真题原句	But one insidious form continues to thrive: alphabetism.
柯林斯星级	★☆☆☆☆
柯林斯解释	1 [ADJ-GRADED 能被表示程度的副词或介词词组修饰的形容词]隐伏的；潜在的；不知不觉间加剧的 Something that is insidious is unpleasant or dangerous and develops gradually without being noticed. The changes are insidious, and will not produce a noticeable effect for 15 to 20 years... 变化是悄然发生的，15 到 20 年间不会产生明显影响。 They focus on overt discrimination rather than insidious aspects of racism. 他们关注的是公开的歧视，而不是种族主义的一些潜在问题。 insidiously Delusions are sometimes insidiously destructive. 妄想有时也具有潜在的破坏性。
来源	2004.2

Insidious Latin Effect Develops In'sidiəs Adj.阴险的 Slowly Secretly