How to use "unkind" in a sentence

You see, I'm not as unkind as you think

He has a short beard and pale, unhealthy skin, and she thinks that his eyes are probably unkind.

On the front there is a picture of a man with a short beard and pale skin and unkind eyes

I thought Maxim was being very unkind

'And forgive me for being so unkind.'

And then what will you do? You'll go to Mr de Winter and tell him that Mrs Danvers has been unkind to you

During the day, however, the merciless sun was unkind to the Strip

'Dear Vicar,' said Miss Marple, 'careless talk is often unkind, but it is also often true.'