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insidious
adjective
See more 4-syllable adjectives

Divide insidious into syllables:

in · sid · i · ous

How to pronounce insidious:

Definition of insidious:

insidious (adjective):
having a gradual and cumulative effect subtle
working or spreading in a hidden and usually injurious way.
working in a subtle or apparently harmless way, but nevertheless dangerous or deadly

Synonyms for insidious:

ambiguous
artful
artificial
beguiling
confounding
crafty
crooked
cunning
deceitful
deceiving
deceptive
deluding
delusive
delusory
designing
devious
disingenuous
distracting
duplicitous
fallacious
false
fast
foxy
fraudulent
guileful
Show 28 more

Antonyms for insidious:

above board
above-board
aboveboard
accepting
apparent
artless
as clear as day
as green as grass
as plain as a pikestaff
as plain as the nose on your face
axiomatic
bald
bald-faced
barefaced
behaved
believing
beyond doubt
beyond question
blatant
blinding
bluff
blunt
bold
bright-line
broad
Show 150 more

Other 4-syllable words like insidious

Here are some other common words that have 4 syllables, like insidious does.

See all 4-syllable words
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Trending words

These words are popular right now. Visit each word to master its syllable count.

  1. surreptitiously
  2. heaven
  3. seriously
  4. unbeknownst
  5. convenient
  6. colleague
  7. confide
  8. equivocate
  9. infatuated
  10. slovenly
  11. granddaughter
  12. sensational
  13. however
  14. consistently
  15. incredibly
  16. exciting
  17. direction
  18. latter
  19. begrudgingly
  20. snowing
  21. perusing
  22. occured
  23. swelt'ring
  24. impinge
  25. satisfy
  26. transient
  27. untie
  28. toward
  29. versatile
  30. obediently
  31. phonetically
  32. feted
  33. distain
  34. usherette
  35. meticulously
  36. affectionate
  37. onto
  38. dissipated
  39. defiantly
  40. stealthily
  41. tooken
  42. sophomoric
  43. tangentially
  44. peeking
  45. benefited
  46. elongate
  47. neither
  48. traveled
  49. emulate
  50. assume


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