bedrock Synonyms

fundamentals fundamental principle basics basic principle rubblestone underlayer underlying underpinning underprop rudiments infrastructure focussing seabed underbuilding tuff rudiment sarsen schist scoria stereobate stone stylobate Substrata substratum substruction substructure talus igneous rock living rock cornerstone bottommost mecca nuts and bolts essentials pudding stone rallying point root system saprolite siltstone foundations all-time low rock bottom life-or-death lithosphere alpha and omega depths infielder grounds understructure meat and potatoes