Bad
unforgiving - Not making an allowance for error or weakness in others; not willing to forgive others for things they might have done wrong.
Because they knew that Alaska in the winter is an unforgiving environment, they had to plan their expedition very carefully.
repercussions - The effects or results of an action, event, or decision, especially those that are unintended or negative.
His decision to suddently quit the company without notice had serious repercussions, hurting his reputation and making it hard to find another job.