Synonyms|479Antonyms|83|Broader|6Narrower|0Related|205
1
guilty
1
hidden out
1
hidlings
1
hush hush(expression, idiom)
1
illegal
1
illegitimate(hidden, fraudulent)
1
illusory(mean, smooth, false, cunning, knowing)
1
impenetrable
1
in chambers(expression, mysterious, private, reticent, taciturn)
1
in hiding
1
in privacy(expression, mysterious, private, reticent, taciturn)
1
in private(expression, mysterious, private, reticent, taciturn)
1
in the background(expression, idiom, mysterious, reticent, taciturn)
1
in the dark(expression, idiom, mysterious, reticent, taciturn)
1
in the wings(expression, idiom)
1
incomprehensible
1
inexplicable
1
inscrutable
1
inside(close, clandestine, underground, undisclosed)
1
insidiously
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APASmart Define. (2015). furtive thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/furtive/thesaurus/synonyms
ChicagoSmart Define. 2015. "furtive thesaurus" https://smartdefine.org/furtive/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, furtive thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/furtive/thesaurus/synonyms>.
MLASmart Define. "furtive thesaurus" 13 April 2015. Web. 28 September 2026. <https://smartdefine.org/furtive/thesaurus/synonyms>