Relating to or characterized by fatuity; absurdly foolish and senseless in a self-satisfied way.
From Latin 'fatuus' (foolish) with the suffix '-ous' (full of, characterized by), creating an adjective describing something filled with foolishness.
Don't confuse 'fatuitous' with 'fortuitous' (meaning fortunate or lucky)—they sound similar but mean the opposite: fatuitous is foolish, while fortuitous is fortunate!
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