To dig underneath (something), to make a passage for destructive or military purposes; to sap. / (figuratively) To weaken or work against; to hinder, sabotage.

simple past tense and past participle of undermine

Third-person singular simple present indicative form of undermine

One who undermines.

plural of underminer

present participle of undermine

The act or process by which something is undermined.

plural of undermining

Susceptible to being undermined.

Insufficiently mineralized