Meaning & use
vacuous
Showing a lack of thought, ideas, or intelligence; empty-headed.
See it in a sentence
He gave a vacuous smile, clearly not following any part of the conversation.
The critic dismissed the film's dialogue as vacuous and utterly forgettable.
A note on using this word
Vacuous often describes an expression, remark, or person that appears empty of genuine thought or meaning.
Words with a similar meaning
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Words with an opposite meaning
Make it your own
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