What is the meaning of the adjective 'rancorous'?

The adjective 'rancorous' is defined as being marked by deep-seated resentment or bitterness, often stemming from past grievances or conflicts. This term typically conveys a sense of hostility that persists over time, reflecting unresolved feelings of animosity or malice towards someone or something. When people describe a situation or person as rancorous, they are emphasizing an enduring and often intense negativity that affects interactions and relationships.

The other options do not accurately capture the essence of 'rancorous.' One refers to prosperity, which is unrelated to resentment; another indicates precision, focusing on detail instead of emotional states; while the last option describes unchecked growth, which pertains more to physical or abstract expansion rather than lingering feelings of hostility.