Bad
tremor - A slight shaking movement, such as one caused by an earthquake or instability; also a subtle or faint sign of emotion, such as fear or excitement in the voice or body.

Because he was nervous, his voice had a significant tremor during the presentation.
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.