- understructure
- Synonyms and related words:base, basement, basis, bearing wall, bed, bedding, bedrock, bottom, floor, flooring, fond, footing, foundation, fundament, fundamental, ground, grounds, groundwork, hardpan, infrastructure, pavement, principle, radical, riprap, rock bottom, rudiment, seat, sill, solid ground, solid rock, stereobate, stylobate, substratum, substruction, substructure, terra firma, underbuilding, undercarriage, undergirding, underpinning, understruction
Moby Thesaurus. Grady Ward. 1996.