Synonyms|72Antonyms|64|Broader|0Narrower|0Related|44
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furtively
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groundlessly(adverb, unlawfully)
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improperly
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in secret(expression, idiom)
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indefensibly(adverb, unlawfully)
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inexcusably(adverb, unlawfully)
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laically
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lift
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misstep
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secretly
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sneakily
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sold clandestinely(expression, adverb, bootleg)
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spuriously
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steal
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stealth
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stealthily
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stealthy
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swipe
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thieving
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thievishly
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APASmart Define. (2015). illicitly thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/illicitly/thesaurus/synonyms
ChicagoSmart Define. 2015. "illicitly thesaurus" https://smartdefine.org/illicitly/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, illicitly thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/illicitly/thesaurus/synonyms>.
MLASmart Define. "illicitly thesaurus" 14 April 2015. Web. 21 September 2026. <https://smartdefine.org/illicitly/thesaurus/synonyms>