155 entries under gentle topic. ×

1
middle-of-the-road(adjective, calm, soft, reasonable)
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mild-tempered(adjective, calm, quiet, restrained)
1
mirrorlike(adjective, quiet, soft, flat)
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monotonous(adjective, quiet, soft, reasonable)
1
not excessive(expression, adjective, calm, soft, reasonable)
1
philosophic(adjective, calm, quiet, restrained)
1
plain(adjective, quiet, light, simple, soft)
1
planate(adjective, quiet, soft, flat)
1
polished(adjective, quiet, soft, flat)
1
rhythmic(adjective, quiet, soft, flat)
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rippleless(adjective, quiet, soft, flat)
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shaven(adjective, quiet, soft, flat)
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shiny(adjective, quiet, soft, flat)
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silky(adjective, quiet, soft, flat)
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sleek(adjective, quiet, soft, flat)
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unbroken(adjective, quiet, soft, flat)
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understanding(adjective, calm, quiet, restrained)
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undeviating(adjective, quiet, soft, flat)
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uneventful(adjective, quiet, soft, flat)
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uniform(adjective, calm, quiet, smooth, soft)
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APASmart Define. (2016). tranquil thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/tranquil/thesaurus/synonyms
ChicagoSmart Define. 2016. "tranquil thesaurus" https://smartdefine.org/tranquil/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2016, tranquil thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/tranquil/thesaurus/synonyms>.
MLASmart Define. "tranquil thesaurus" 3 March 2016. Web. 28 September 2026. <https://smartdefine.org/tranquil/thesaurus/synonyms>