fatuous
Concise Oxford English Dictionary © 2008 Oxford University Press:
fatuous /ˈfatjʊəs/
▶adjective silly and pointless.
– derivatives
fatuity noun (pl. fatuities),
fatuously adverb,
fatuousness noun.
fatuity noun (pl. fatuities),
fatuously adverb,
fatuousness noun.
'fatuous' also found in these Oxford entries:

