Here's why:
* Meaning: "Wastrel" is a noun already conveying the meaning of a person who wastes time, money, and opportunities. Adding a prefix might make the meaning redundant or unclear.
* Structure: The word itself is already complete and has a clear, established meaning. Prefixes are typically used to modify or alter the meaning of words.
However, you can use other related words or phrases to convey similar meanings with prefixes:
* Prodigal: Means wasteful or extravagant. You could use "prodigal son" or "prodigal spender" instead of "wastrel."
* Inefficient: Means lacking effectiveness. You could say "inefficient worker" or "inefficient use of resources" to describe someone who wastes time or resources.
* Reckless: Means careless or irresponsible. You could say "reckless spender" or "reckless gambler" to describe someone who wastes money or opportunities.
Ultimately, the best way to describe someone as a "wastrel" depends on the specific context and the nuance you want to convey.