What is an abrasive personality? @ Quora

"1. Passing advice without being asked for.

2. Assuming a lot of things about a person before talking to him/her.

3. Being insensitive to others' feelings.

4. Criticizing others unfairly, knowing fully that such criticism is unjustified.

5. Has a judgement on everyone and intractable rigidity.

6. Assuming false expertise in every matter out there."

See more @ Quora