0
calming(excellent, gentle, marvelous, vague, dreamy)
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chimerical(excellent, gentle, marvelous, vague, dreamy)
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daydreaming(gentle, marvelous, vague, dreamy, faraway)
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demoniac(adjective, extraordinary, unreasonable, inappropriate, absurd)
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disquieting(adjective, frightening)
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distracted
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distrait
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eccentric
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eldritch
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ethereal(adjective, extraordinary, unreasonable, inappropriate, absurd)
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exasperating
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excellent(gentle, marvelous, vague, dreamy, faraway)
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exotic
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extravagant
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extremely alarming(expression, idiom)
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faraway
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fiendish
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formidable
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freakish
0
frustrating
13 years ago|3.4k views|share |citing 
APASmart Define. (2013). nightmarish thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/nightmarish/thesaurus/synonyms
ChicagoSmart Define. 2013. "nightmarish thesaurus" https://smartdefine.org/nightmarish/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2013, nightmarish thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/nightmarish/thesaurus/synonyms>.
MLASmart Define. "nightmarish thesaurus" 28 June 2013. Web. 29 September 2026. <https://smartdefine.org/nightmarish/thesaurus/synonyms>