Definitions for Insidious
ɪnˈsɪd i əsin·sid·i·ous

Princeton's WordNetRate this definition:4.3 / 3 votes

1. insidiousadjective

   beguiling but harmful

   "insidious pleasures"

2. insidiousadjective

   intended to entrap

3. insidious, pernicious, subtleadjective

   working or spreading in a hidden and usually injurious way

   "glaucoma is an insidious disease"; "a subtle poison"

GCIDERate this definition:0.0 / 0 votes

1. Insidiousadjective

   Acting or proceeding unobserved or in a seemingly harmless manner, but slowly or eventually doing great damage; as, an insidious disease; an insidious plot.

WiktionaryRate this definition:0.0 / 0 votes

1. insidiousadjective

   Producing harm in a stealthy, often gradual, manner.

2. insidiousadjective

   Intending to entrap; alluring but harmful

3. insidiousadjective

   Treacherous.

4. Etymology: From insidiosus, from insidiae + -osus, from insideo, from in + sedeo.

Samuel Johnson's DictionaryRate this definition:0.0 / 0 votes

1. INSIDIOUSadjective

   Sly; circumventive; diligent to entrap; treacherous.

   Etymology: insidieux, French; insidiosus, Latin.

   Since men mark all our steps, and watch our haltings, let a sense of their insidious vigilance excite us so to behave ourselves, that they may find a conviction of the mighty power of Christianity towards regulating the passions. Francis Atterbury, Sermons.

   They wing their course,
   And dart on distant coasts, if some sharp rock,
   Or shoal insidious, breaks not their career. James Thomson.

ChatGPTRate this definition:0.0 / 0 votes

1. insidious

   Insidious is an adjective that describes something harmful or deceitful that is progressing in a gradual, subtle way, but with very harmful effects. It's often used to describe diseases that have gradual and cumulative effects or situations or actions that appear harmless at first but may cause serious harm over time.

Webster DictionaryRate this definition:0.0 / 0 votes

1. Insidiousadjective

   lying in wait; watching an opportunity to insnare or entrap; deceitful; sly; treacherous; -- said of persons; as, the insidious foe

2. Insidiousadjective

   intended to entrap; characterized by treachery and deceit; as, insidious arts

3. Etymology: [L. insidiosus, fr. insidiae an ambush, fr. insidere to sit in; pref. in- + sedere to sit: cf. F. insidieux. See Sit.]

WikidataRate this definition:1.0 / 1 vote

1. Insidious

   Insidious is the 5th full-length album by Mephisto Walz. All the tracks on this album were arranged, recorded, mixed, written and produced by Barry Galvin. Christianna provided the vocals and David Glass supplied some of the drums for this album.

Chambers 20th Century DictionaryRate this definition:5.0 / 1 vote

1. Insidious

   in-sid′i-us, adj. watching an opportunity to ensnare: intended to entrap: deceptive: advancing imperceptibly: treacherous.—adv. Insid′iously.—n. Insid′iousness. [L. insidiosus—insidiæ, an ambush—insidēre—in, sedēre, to sit.]

Suggested ResourcesRate this definition:0.0 / 0 votes

1. insidious

   Song lyrics by insidious -- Explore a large variety of song lyrics performed by insidious on the Lyrics.com website.

How to pronounce Insidious?

1. Alex

   US English

   David

   US English

   Mark

   US English

   Daniel

   British

   Libby

   British

   Mia

   British

   Karen

   Australian

   Hayley

   Australian

   Natasha

   Australian

   Veena

   Indian

   Priya

   Indian

   Neerja

   Indian

   Zira

   US English

   Oliver

   British

   Wendy

   British

   Fred

   US English

   Tessa

   South African

How to say Insidious in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of Insidious in Chaldean Numerology is: 4

2. Pythagorean Numerology

   The numerical value of Insidious in Pythagorean Numerology is: 2

Examples of Insidious in a Sentence

1. Louis D. Brandeis:

   Experience should teach us to be most on our guard to protect liberty when the government's purposes are beneficial. The greatest dangers to liberty lurk in insidious encroachment by men of zeal, well meaning but without understanding.

2. Clay Higgins:

   I’m not concerned with the insidious lies of desperate men. I have a job to do, a nation to save, and 760K constituents of South Louisiana to serve.

3. Naomi Kahn:

   Because Judea and Samaria are the cradle of Jewish history, these areas are quite naturally the focal points of this insidious campaign.

4. Percival:

   One hour of thoughtful solitude may nerve the heart for days of conflict - girding up its armor to meet the most insidious foe.

5. Siegfried Fischbacher:

   Roy was a fighter his whole life including during these final days. I give my heartfelt appreciation to the team of doctors, nurses and staff at Mountain View Hospital who worked heroically against this insidious virus that ultimately took Roy's life.

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References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=Insidious
2. ^ GCIDE
   https://gcide.gnu.org.ua/?q=Insidious
3. ^ Wiktionary
   https://en.wiktionary.org/wiki/Insidious
4. ^ Samuel Johnson's Dictionary
   https://johnsonsdictionaryonline.com/views/search.php?term=Insidious
5. ^ ChatGPT
   https://chat.openai.com
6. ^ Webster Dictionary
   https://www.merriam-webster.com/dictionary/Insidious
7. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=Insidious
8. ^ Chambers 20th Century Dictionary
   https://www.gutenberg.org/files/37683/37683-h/37683-h.htm#:~:text=Insidious