Forbidden or prohibited[1]: to be against the rules or not allowed.
Smoking is prohibited on many airplanes.
Athletes are forbidden from taking certain kinds of drugs.
If something is allowed, it isn't forbidden or prohibited.
Risky: to be a bit dangerous or unsafe.
A risky investment maybe not be a good idea for people who worry too much.
If you make a risky investment, you may lose a lot of money.
What level of risk are you willing to take?
Ridiculous: to be foolish or not make any sense.
Their proposal is ridiculous because it requires too much time and money.
Without enough quality practice, it's ridiculous to expect much progress.
Innovative[2]: to come up with a new idea or way of doing things.
Innovative people are usually clever and creative.
To innovate means to come up with a new way of doing something.
Innovative thinking can lead to the development of new products and services.
Conservative[3]:to be conservative is to avoid taking risks.
Conservative investors try to make safe investments.
A conservative investor wants to minimize risks.
A conservative approach[4] to management may discourage innovation.
If something is allowed, it isn't forbidden or prohibited.
