Vacuous

//ˈvækju.əs//

Antonyms for "vacuous" (9 found)

Adjective(9 words)

brainy bright packed to the gills packed to the rafters quick on the uptake quickwitted sharp-witted stuffed to the gills whip-smart

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.