1. insidious: adjective definition intending to entrap or beguile
stealthily treacherous or deceitful
acting in an inconspicuous or seemingly harmless way but actually
with grave effect

2. insidious
pronunciation:
in-sid-ee-uhs

3. insidious surreptitious disingenuous duplicitous treacherous
synonyms
surreptitious
disingenuous
duplicitous
treacherous
intriguing
perfidious
dangerous

4. insidious
related forms:
adverb
insidiously
noun
insidiousness

5. insidious
an insidious disease.
Sodium’s insidious presence in unexpected products can make it difficult to maintain a low sodium diet.
an insidious enemy.

6. insidious The insidious destruction caused by termites
can sometimes be visible only after the damage
is so severe that
the structure
collapses.

7. insidiously
Moral corruption can begin with a single, unethical action that insidiously takes root and grows.

8. insidiously The chef insidiously devised a plan that would wreak havoc
on the party without drawing suspicion to his actions.

9. insidiously
Stealth bombers insidiously slip behind enemy lines without alerting anyone until it’s too late to defend against them..

10. insidiousness
The insidiousness of a bad habit can creep up on you.

11. insidiousness
The insidiousness of a situation can be shocking.

12. insidiousness
The insidiousness of the demon was hidden behind the innocent demeanor of the child it possessed.