Word: Rancorous
Part of Speech: Adjective
Definition: The word "rancorous" describes a strong feeling of bitterness or resentment that someone has, often because of a past conflict or unfair treatment. It suggests that the feelings are deep-seated and can last for a long time.
While "rancorous" primarily refers to bitterness, the word "rancor" itself can also mean an intense and often mutual hatred or ill will. However, "rancorous" focuses more on the bitterness aspect.
There are no specific idioms or phrasal verbs that directly incorporate "rancorous," but you might encounter phrases like "hold a grudge," which convey a similar meaning of lingering resentment.
To sum up, "rancorous" is used to describe a strong, lasting resentment or bitterness towards someone or something, usually due to past grievances.