1
lodge
1
lower side
1
lower strata
1
lowest
1
lowest layer
1
lowest level
1
lowest point
1
magma
1
material
1
metamorphic rock
1
monolith
1
motive(cause, reason, source, basis, justification)
1
nadir
1
nether side
1
nethermost
1
nethermost level
1
nexus(noun, support, action, base, beginning)
1
nucleus(noun, support, action, cause, start)
1
occasion(cause, reason, source, basis, justification)
1
of vital importance(expression, idiom)
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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>