Definition of "rancorous" [ran•cor•ous]

• Full of rancor; bitter; unforgiving. (adjective)

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• "Cause litigation firms on the left and the right engage in rancorous legal fights around the nation on a range of subjects, seeking to further their agendas, from teaching creationism, to overturning SEC regulations, to fighting affirmative action, to promoting (or opposing) gay marriage."
• "And do you assign any responsibility to yourself for what this morning you described as the rancorous mood in Washington today?"
• "The meeting, one said later, was "rancorous" - and the winner was Brzezinski, who still hoped for a pro-American military coup to restore order, and persuaded Carter to veto the plan."