Some sentence examples which use the word 'underhanded'
The discourteous and underhanded treatment of this embassy by Talleyrand and his agents., who attempted to obtain their ends by bribery, threats and duplicity, resulted in the speedy retirement of Marshall and Pinckney.
Even his hatred had something impressive about it, for he fought to kill, and was never snarling and underhanded.
The meanest part of it is the underhanded way in which he has taken Phil.