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nubilous

[noo-buh-luh s, nyoo-]
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adjective
  1. cloudy or foggy.
  2. obscure or vague; indefinite.
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Origin of nubilous

1525–35; < Latin nūbilus, equivalent to nūb(ēs) cloud + -ilus adj. suffix. See -ous
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018