vacuous
Concise Oxford English Dictionary © 2008 Oxford University Press:
vacuous /ˈvakjʊəs/
▶adjective
- 1 showing a lack of thought or intelligence.
- 2 archaic empty.
– derivatives
vacuity /vəˈkjuːɪti/ noun,
vacuously adverb,
vacuousness noun.
vacuity /vəˈkjuːɪti/ noun,
vacuously adverb,
vacuousness noun.
'vacuous' also found in these Oxford entries:

