Bullish and bearish are terms used to describe the state of a market.

Bullish: the market is doing well and growing.

Bearish: the market is doing poorly and receding.

Bearish means acting like a bear. So if you were to say it in a sentence, you would most likely say bear-like, or acting like a bear, not bearish. Here is a sentence with bearish in it, anyways, like you asked for, but it isn't really proper.

He acted bearish.

Bearish would definitely describe her.

Hope this helps, please give trust point? Thanks :)

There are some different meaning for the word "bearish". However, in financial terms, the meaning of the word "bearish" is causing, expecting, or characterized by a fall in prices.

My dad is so bearish when he gets up that we don't talk to him until he's had his coffee.

A history of debt and bearish market conditions.