Forbidden or prohibited: to be against the rules, or not allowed.

Smoking is prohibited on many airplanes.

Athletes are forbidden from taking certain kings of drugs.

If something is allowed, it isn't forbidden or prohibited.

Risky: to be a bit dangerous or unsafe.

A risky investment may 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?

Meeting someone on the Internet can be very risky, so be careful.

Ridiculous: to be foolish or not make any sense.（荒謬的）

Their proposal is ridiculous because it requires too much time and money.(提議；投標）

Without enough quality practice, it's ridiculous to expect much progress.

He is lazy and the quality of his work is poor so it's ridiculous for him to expect a bonus.

Innovative: 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.(創(chuàng)新的）

He isn't innovative because he resists change and always wants to do things the same way.

Conservative: to be conservative is to avoid taking risks.

Conservative investors try to make safe investments.(保守的）

A conservative investors wants to minimize risks.

A conservative approach to management may discourage innovation.