undersetting From WikiWord, the free dictionary English Contents DefinitionsRelated wordsReferences DefinitionsnounSomething set or built under as a support; a pedestal. Related wordsSynonymssubbasesubstructionunderbedbasepedestrialpedestalplinthunderpinningfootstallpodiumunderbuildingsocleunderframestandardbedplatebaseplate References Wiktionary — undersetting Wikipedia — undersetting