Definition

Someone or something that cannot be calmed down or made less angry; they remain strong in their feelings or opinions.

Example

The implacable enemy refused to negotiate for peace.

Conversation

I can't believe how implacable he is about his opinions.

Right? It's like talking to a brick wall sometimes.

Exactly! No matter what you say, he just won't budge.

I wonder if he'll ever be open to new ideas.

Synonyms & Antonyms

Root Explanation

Implacable is formed from "im-" (meaning not) and "placabilis" (from Latin, meaning able to be appeased or calmed). The word describes someone who cannot be appeased or calmed, indicating a relentless or unforgiving nature.

Memory Tip

Think of someone who is 'not' ('im-') able to be 'calmed' ('placabilis') — that's why implacable means someone who cannot be appeased.

Visually Confused Words