Answer: bedrock

AnswerCrossword Clue
BEDROCKStrong foundation
BEDROCKRubble's home
BEDROCKFirm foundation
BEDROCKFounding principles
BEDROCKSolid foundation.
BEDROCKLowest stratum.
BEDROCKNadir
BEDROCKThe Flintstones' home
BEDROCKFlintstones' hometown
BEDROCKSolid ground
BEDROCKFlintstone's city
BEDROCK"The Flintstones" setting
BEDROCK"The Flintstones" town
bedrockthe lowest state
bedrockcontinuous solid rock under soil
bedrockany firm foundation