vacuous
adjective
[ ˈvakjʊəs ]
• having or showing a lack of thought or intelligence; mindless.
• "a vacuous smile"
Similar:
blank,
vacant,
expressionless,
deadpan,
inscrutable,
inexpressive,
poker-faced,
emotionless,
impassive,
absent,
absent-minded,
uninterested,
empty,
glassy,
stony,
wooden,
motionless,
lifeless,
inanimate,
empty-headed,
unintelligent,
without thought,
brainless,
dense,
dull-witted,
thick,
inane,
stupid,
brain-dead,
• empty.
Origin:
mid 17th century (in the sense ‘empty of matter’): from Latin vacuus ‘empty’ + -ous.
