When you say that two things are poles apart it means that they are completely opposite to each other. Examples of things that might be 'poles apart' are two differing beliefs, opposite opinions or contrasting qualities. Similar in meaning to 'incompatible' or 'to be worlds apart'. This is an idiomatic expression that can be used in social and professional contexts.

1. Eric and his brother are poles apart in terms of their personality. That's one of the big reasons they don't get on too well with each other.
2. Chris was poles apart from any of his teammates in terms of talent. He really was on another level.

1. Unfortunately, we're still not close to reaching an agreement with the company. In fact, we're poles apart in our negotiations.
2. Although they create similar products, the two companies mission statements are poles apart when it comes to their processes.