1. unyielding; unalterable
2. not to be persuaded, moved, or affected by prayers or entreaties
The inexorable judge gave the sentence she believed was just despite the roar of outrage the defendant's supporters let loose.
I see that this word's been done before, but it was quite a while ago, so I thought it'd be okay. I kept seeing 'inexorable' in a book I'm reading and was annoyed to find I didn't know what it meant, so I thought I'd look it back up and share.