66 entries under idiom topic. ×

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out of reach(expression, isolated, reclusive, uncompanionable)
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out of the way(expression, isolated, reclusive, uncompanionable)
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out to lunch(expression, unknowing, hermetical, unbriefed)
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persistent and lasting
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shrouded in mystery(expression, unintelligibility)
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under false pretense(expression, clandestine, underground, undisclosed)
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APASmart Define. (2015). hidden thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/hidden/thesaurus/synonyms
ChicagoSmart Define. 2015. "hidden thesaurus" https://smartdefine.org/hidden/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, hidden thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/hidden/thesaurus/synonyms>.
MLASmart Define. "hidden thesaurus" 10 April 2015. Web. 25 September 2026. <https://smartdefine.org/hidden/thesaurus/synonyms>