supergrass
0 antonyms and opposites of supergrass, grouped by meaning.
Noun — An informer providing substantial quantities of information on criminal or terrorist activities to the police.
We haven't recorded synonyms for supergrass yet. You can still read its full definition, where it comes from, or words that rhyme with it.
Etymology
From super- + grass, from grass (“an informer”).
Full origin of supergrass →