1. cooked too much or for too long
2. excessive or exaggerated in degree or manner

Examples

• The steak was overdone and tough to chew.
• She complained that the vegetables were overdone and mushy.
• His dramatic performance was completely overdone.
• The decorations were overdone for such a simple party.
• The makeup looked overdone under the bright lights.
• I prefer my pasta al dente, not overdone.
• The special effects in the movie were overdone and distracting.