countersign
0 antonyms and opposites of countersign, grouped by meaning.
Noun — A second signature added to a document to affirm the validity of the signature of the first person.
We haven't recorded synonyms for countersign yet. You can still read its full definition, where it comes from, or words that rhyme with it.
Etymology
From Middle French contresigne. Equivalent to counter- + sign.
Full origin of countersign →