Thesaurus.com
Thesaurus / insidious
FEEDBACK

insidious

See definition of insidious on Dictionary.com

synonyms for insidious

  • dangerous
  • subtle
  • Machiavellian
  • artful
  • astute
  • corrupt
  • crafty
  • crooked
  • cunning
  • deceitful
  • deceptive
  • deep
  • designing
  • dishonest
  • disingenuous
  • duplicitous
  • false
  • foxy
  • guileful
  • intriguing
  • like a snake in the grass
  • perfidious
  • perilous
  • secret
  • slick
  • sly
  • smooth
  • snaky
  • sneaking
  • stealthy
  • surreptitious
  • treacherous
  • wily
  • wormlike
Meet Grammar Coach
Write or paste your essay, email, or story into Grammar Coach and get grammar helpImprove Your Writing
Meet Grammar Coach
Improve Your Writing
Write or paste your essay, email, or story into Grammar Coach and get grammar help

antonyms for insidious

MOST RELEVANT
  • fair
  • honest
  • open
  • sincere
Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.

TRY USING insidious

See how your sentence looks with different synonyms.

Characters: 0/140
QUIZ
Do You Get Verklempt Thinking About Last Week’s Words?
START THE QUIZ

How to use insidious in a sentence

Though they’re inaudible to human ears, whose range bottoms out at 20 Hz, the interval creates some fairly insidious side effects.
WHY DO WE SEE GHOSTS?JAKE BITTLEOCTOBER 6, 2020POPULAR-SCIENCE
Ginsburg delivered her dissent aloud from the bench, accusing her colleagues of either ignoring or failing to comprehend the “insidious” nature of pay discrimination, and called on Congress to act.
HOW A CONSERVATIVE 6-3 MAJORITY WOULD RESHAPE THE SUPREME COURTAMELIA THOMSON-DEVEAUX (AMELIA.THOMSON-DEVEAUX@ABC.COM)SEPTEMBER 28, 2020FIVETHIRTYEIGHT
The most insidious problem, however, is the varroa mite, appropriately named Varroa destructor.
THE FUNGAL EVANGELIST WHO WOULD SAVE THE BEES - ISSUE 90: SOMETHING GREENMERLIN SHELDRAKESEPTEMBER 23, 2020NAUTILUS
Indeed, air conditioning represents one of the most insidious challenges of climate change, and one of the most difficult technological problems to fix.
AIR CONDITIONING TECHNOLOGY IS THE GREAT MISSED OPPORTUNITY IN THE FIGHT AGAINST CLIMATE CHANGEJAMES TEMPLESEPTEMBER 1, 2020MIT TECHNOLOGY REVIEW
Such a situation is particularly insidious because the pay gap she experiences would often go undetected.
HOW TO BE A FAIR-PAY CEOMATTHEWHEIMERAUGUST 25, 2020FORTUNE
Play-writing is a luxury to a journalist, as insidious as golf and much more expensive in time and money.
FIRST PLAYSA. A. MILNE
Each cachet contained three decigrams of malourea, the insidious drug notorious under its trade name of Veronal.
DOPESAX ROHMER
The state of affairs which has come about was uncertain in origin, insidious in growth, and has developed over a wide field.
REPORT OF THE SPECIAL COMMITTEE ON MORAL DELINQUENCY IN CHILDREN AND ADOLESCENTSOSWALD CHETTLE MAZENGARB ET AL.
She believed he sought her, and she must needs fight an insidious liking for him.
REPERTORY OF THE COMEDIE HUMAINE, COMPLETE, A -- ZANATOLE CERFBERR AND JULES FRANOIS CHRISTOPHE
This is a thing I would despise in anybody else; but he is so jolly insidious 240 and ingratiating!
THE WORKS OF ROBERT LOUIS STEVENSON - SWANSTON EDITION VOL. 25 (OF 25)ROBERT LOUIS STEVENSON
SYNONYM OF THE DAY
JULY 28, 2021
Choose the synonym for explosive
volatile

WORDS RELATED TO INSIDIOUS

Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.

WORD OF THE DAY

Fletcherizeverb (used with or without object) | [flech-uh-rahyz ]SEE DEFINITION