If someone is described as implacable, what does it mean?

Describing someone as implacable signifies that they are unwavering and relentless, particularly in their feelings or actions. The term specifically refers to an individual who is impossible to appease or pacify; their stance or emotional state does not yield to reason or comfort. This quality denotes a deep-rooted intensity in their emotions or attitudes that resists change, making them steadfast in their position or discontent.

In situations involving conflict or negotiation, an implacable person might be unyielding, creating challenges for resolution. Their inability to be pacified highlights a strong, often negative determination, suggesting that attempts to calm or satisfy them are futile. Such traits can often emerge in high-stakes situations, where emotions run high, and compromise seems unattainable.

The other options reflect characteristics that are contrary to the sense of implacability. Being easily pleased or open to persuasion connotes flexibility and adaptability, whereas being calm and collected implies a tranquility or ease that is quite opposite to being implacable.