v. 25B6; verb
their integrity is being undermined : SUBVERT, sabotage, threaten, weaken, compromise, diminish, reduce, impair, mar, spoil, ruin, damage, hurt, injure, cripple, sap, shake; informal drag through the mud.
we undermined the building : TUNNEL UNDER, dig under, burrow under, sap.
the damp had so undermined the wall that it collapsed : ERODE, wear away, eat away at.
strengthen, support.