Pair 'repercussion' with words that match the situation's seriousness; 'negative' for bad outcomes. They ignored the negative repercussions of illegal downloading.
Pro Tip 2/3
Not Always Immediate
Repercussions may occur long after the initial event, showing delayed effects. The environmental repercussions of the oil spill were felt years later.
Pro Tip 3/3
Emotional Weight
Use 'repercussion' to imply significant, often negative, impact or seriousness. His betrayal had deep emotional repercussions for the family.