No it's not.

In fact, safe investments are almost impossible to come across. All types of investments have an upside and a downside. That means there is always a certain level of risk involved. There is the possibility of losing money, no matter how minimal.

That being said. In terms of risk, Bitcoin is far from safe. It is an investment of high risk. This is largely due to the volatility of its price and the absence of exact value.

With high volatility, there is the possibility of a big drop or a big rise in prices. Given that Bitcoin relies on the simply economics of supply and demand to support its prices, the same simple economics could be it's undoing. If everybody starts selling, you will lose money. If there is a strong interest, you will make money. But a smart investor never focuses on the possible wins. His main focus is possible losses he could incur. Based on the metric of volatility then, Bitcoin is highly unsafe.

When it comes to value, we really aren't sure whether Bitcoin is going to be eventually accepted as a store of value or a currency. In investment, this uncertainty spells doom. For an investment to be considered safe, you have to be able to assess it's value and determine it's price. This is something that Bitcoin investors have been unable to do. Most of them refer to it as digital gold, and that it's price depends on consensus. But this only works when it's accepted universally as that. Before that happens, things could really go either way.

Remember, investing with the hope that something will rise in value is called speculation. Being able to value and determine the risks associated with the instrument in which you are investing your money is what investment entails.

Investors might lose some but they make it back somehow. Speculators get rimmed big time.

So the answer to your question, Bitcoin is not a safe investment. At least not yet.