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vacuous

adjective

/ˈvækjuəs/

Meaning

Having or showing a lack of thought or intelligence; mindless.

She gave a vacuous smile during the serious discussion.

vacuous expression

empty, foolish, silly, mindless, hollow

thoughtful, intelligent, meaningful

vacuous smile, vacuous stare, vacuous remark, vacuous expression

Causing harm or damage to something or someone.

capable of being corrected or improved

fast; rapid; swift; happening in a short time

Likely or liable to be influenced or harmed by a particular thing.

applicable to all cases; existing everywhere

covering or affecting a large area; comprehensive; wide-ranging