15
cellar(noun, building, understructure, underbuilding)
13
basement(noun, understructure, underbuilding)
0
subterranean room(noun, expression, understructure, underbuilding)
0
subbasement
0
furnace room
0
subterrane
0
underbuilding
-2
strong room(noun, expression, understructure, underbuilding)
-4
underground room(noun, expression, understructure, underbuilding)
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APASmart Define. (2015). attic thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/attic/thesaurus/antonyms
ChicagoSmart Define. 2015. "attic thesaurus" https://smartdefine.org/attic/thesaurus/antonyms (accessed September 23, 2026).
HarvardSmart Define 2015, attic thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/attic/thesaurus/antonyms>.
MLASmart Define. "attic thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/attic/thesaurus/antonyms>