I. ˈ ̷ ̷| ̷ ̷ noun
Etymology: bed (I) + rock
1. : the solid rock underlying the soil and other unconsolidated materials or appearing at the surface where these are absent — called also ledge
2.
a. : lowest point : nadir , minimum : least quantity
his resources were at bedrock
b. : basis , foundation
a bedrock of elementary learning on which an intermediate teacher could build
: basic situation or consideration after matters adventitious have been stripped away
II. adjective
: stripped of nonessential matter obscuring or adorning : basic , fundamental : solid , factual
the great advantage of reality is its hard, bedrock , concrete quality — Lionel Trilling