2
rubble
2
solid rock(expression, idiom)
2
support(noun, action, substance, authority, rest)
2
understructure(noun, support, substance, authority, base)
1
abyssal rock
1
action(noun, support, base, beginning, source)
1
antecedent(noun, support, action, cause, reason)
1
assumption(noun, support, action, base, beginning)
1
axiom(noun, support, action, base, beginning)
1
backbone(noun, support, action, base, beginning)
1
background(noun, support, action, base, beginning)
1
backing(noun, support, action, base, beginning)
1
basalt
1
baseboard
1
basic
1
bearing wall
1
bedding
1
belly
1
block lava
1
bottommost
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APASmart Define. (2015). bedrock thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/bedrock/thesaurus/synonyms
ChicagoSmart Define. 2015. "bedrock thesaurus" https://smartdefine.org/bedrock/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, bedrock thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/bedrock/thesaurus/synonyms>.
MLASmart Define. "bedrock thesaurus" 10 April 2015. Web. 23 September 2026. <https://smartdefine.org/bedrock/thesaurus/synonyms>