fatuityn.
英 fə'tjʊ(ː)ɪtɪ | 美
中文n. 昏庸；愚昧；愚蠢的言行
词根词源
fatuity (n.)1640s, from Middle French fatuité (14c.), from Latin fatuitatem (nominative fatuitas) "foolishness, folly," from fatuus "foolish, insipid" (see fatuous).
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