Overinflated (adjective)

1. Having an excessive or artificially high value, amount, or price.
2. Expanded too much, especially with air or gas.
3. Exaggerated or unjustifiably high in estimation.

Origin:

Formed from the verb 'inflate' with the prefix 'over-', meaning 'excessively'.

Examples:

1. The stock market was overinflated due to speculation and false rumors.
2. The balloon was overinflated and popped suddenly.
3. The athlete's ego was overinflated after winning several awards.
4. The movie's budget was overinflated, leading to its failure at the box office.
5. The report was overinflated and did not accurately reflect the situation.