involving the possibility of something bad happening synonym dangerous Life as an aid worker can be a risky business (= dangerous). a risky investment It's far too risky to generalize from one set of results.Extra examples It all sounds decidedly risky to me. Even a very good company can be a risky investment if it is overvalued. It’s far too risky to generalize from one set of results. Predicting the weather is a risky business for farmers.