Adjective

(en adjective)

In the form of a cloud or haze; hazy.

Vague or ill-defined.

* 1915 , Arthur Conan Doyle, The Valley of Fear

The magistrate could not possibly, on the evidence, have held them for a higher court. On the one hand the compositors and pressmen were forced to admit that the light was uncertain, that they were themselves much perturbed, and that it was difficult for them to swear to the identity of the assailants; although they believed that the accused were among them. Cross examined by the clever attorney who had been engaged by McGinty, they were even more nebulous in their evidence.

Relating to a nebula or nebulae.

Adjective

(er)

In shadow; darkened by shadows.

He sat in a shadowy corner.

(of character) Dark, obscure.

He was a shadowy man who rarely spoke.

* {{quote-news

, year=2011 , date=December 19 , author=Kerry Brown , title=Kim Jong-il obituary , work=The Guardian citation , page= , passage=By 1980, South Korea had overtaken its northern neighbour, and was well on its way to being one of the Asian tigers – high-performing economies, with democratic movements ultimately winning power in the 1990s. The withdrawal of most Soviet aid in 1991, with the fall of the Soviet empire, pushed North Korea further down. Kim Il-sung had held a genuine place on North Korean people's affections. His son was regarded as a shadowy playboy, with rumours circulating over the years that he imported Russian and Chinese prostitutes, and lived a life of profligacy and excess.}}