"overdone" in the verb sense
1. overdo, exaggerate
do something to an excessive degree
"He overdid it last night when he did 100 pushups"
"overdone" in the adjective sense
1. exaggerated, overdone, overstated
represented as greater than is true or reasonable
"an exaggerated opinion of oneself"
2. overdone
cooked too long but still edible
Source: WordNet® (An amazing lexical database of English)
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