vacuous
VAK-yoo-us
/ˈvæk.ju.əs/
Having or showing a lack of thought or intelligence; mindless or empty.
Emphasizes an absence of substance, depth, or mental activity, like an empty container.
The story behind the word. Directly descended from Latin 'vacuus' (empty), which also gave us 'vacuum' and 'vacate'. English writers adopted 'vacuous' in the 17th century to describe empty spaces, but soon applied it to minds and expressions that lacked internal substance.
Word relationships
- inane: Inane highlights silly lack of meaning; vacuous stresses blank physical or mental emptiness.
- empty: Empty is literal and plain; vacuous is formal and focuses on intellectual void.
- thoughtful: Thoughtful indicates deep reflection and mental engagement.
- expressive: Expressive conveys rich emotion and mental life.
Commonly confused with
- vague: Vague means imprecise or indistinct; vacuous means completely empty of thought.
Word family
- vacuosity (noun): Lack of intelligence or substance.
- vacuously (adverb): In a mindless or empty manner.
- vacuum (noun): A space entirely devoid of matter.
Collocations
- vacuous smile
- vacuous expression
- vacuous rhetoric
- vacuous stare
Example sentences
- "Behind the model's stunning face was a curiously vacuous expression that conveyed no emotion." Art critique
- "The candidate delivered a vacuous speech filled with catchy slogans but zero policy details." Political speech
Memory hook
VACUOUS sounds like VACUUM; a vacuous mind is sucked empty like a vacuum. Mindlessly empty.
When not to use
Do not use to describe physical hunger; keep it for mental emptiness, expressions, or promises.
Fun facts
- In early English medical texts, 'vacuous' described veins that had been drained of blood!
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