About The Word Insidious
Learn about the word Insidious to help solve your crossword puzzle. Discover Insidious definitions and meaning, origins, synonyms, related terms and more at the free Crossword Dictionary.
Insidious
| Insidious Definition And Meaning |
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What's The Definition Of Insidious?
[adj] working or spreading in a hidden and usually injurious way; "glaucoma is an insidious disease"; "a subtle poison"
[adj] intended to entrap [adj] beguiling but harmful; "insidious pleasures" Synonyms | Synonyms for Insidious: dangerous | harmful | pernicious | seductive | subtle | unsafe Related Terms | Find terms related to Insidious: acute | amoral | arch | artful | astute | Byzantine | cagey | calculating | canny | chiseling | clever | collusive | conscienceless | corrupt | corrupted | covinous | crafty | criminal | crooked | cunning | cute | dangerous | dark | deceitful | deep | deep-laid | designing | devious | diplomatic | dishonest | dishonorable | doubtful | dubious | evasive | false | falsehearted | feline | felonious | finagling | fishy | foxy | fraudulent | furtive | gradual | guileful | ill-got | ill-gotten | immoral | indirect | ingenious | inventive | knowing | Machiavellian | Machiavellic | not kosher | pawky | perfidious | perilous | politic | questionable | ready | resourceful | rotten | scheming | serpentine | shady | shameless | sharp | shifty | shrewd | sinister | slick | slippery | sly | smooth | snaky | sneaky | sophistical | stealthy | strategic | subtile | subtle | supple | surreptitious | suspicious | tactical | treacherous | trickish | tricksy | tricky | two-faced | unconscienced | unconscientious | unconscionable | underhand | underhanded | unethical | unprincipled | unsavory | unscrupulous | unstraightforward | vulpine | wary | wily | without remorse | without shame See Also | Insidious In Webster's Dictionary \In*sid"i*ous\, a. [L. insidiosus, fr. insidiae an
ambush, fr. insidere to sit in; pref. in- + sedere to sit:
cf. F. insidieux. See {Sit}.]
1. Lying in wait; watching an opportunity to insnare or
entrap; deceitful; sly; treacherous; -- said of persons;
as, the insidious foe. ``The insidious witch.'' --Cowper.
2. Intended to entrap; characterized by treachery and deceit;
as, insidious arts.
The insidious whisper of the bad angel. --Hawthorne.
{Insidious disease} (Med.), a disease existing, without
marked symptoms, but ready to become active upon some
slight occasion; a disease not appearing to be as bad as
it really is.
Syn: Crafty; wily; artful; sly; designing; guileful;
circumventive; treacherous; deceitful; deceptive. --
{In*sid"i*ous*ly}, adv. -- {In*sid"i*ous*ness}, n.
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