blockquote without big quotes, italics?

Is there a way to get a plain blockquote? I.e., the enclosed text is indented, but it isn't italicized, and there is no big-open-quote icon.

(I'm not looking for a literal block. The text should be set in the default normal font and filled. The only thing setting it apart from other body text is the left-indent.)

Fair enough, as far as the intent of the block quote goes.  

However, I guess I'm looking for something that is not so much a quote as it is a display.  If I wanted to show that a certain small stretch of text (in TeX or troff, say) produces a certain output, how do I display that output, so that it is distinct from the surrounding body text? (The output in general won't be monospace, or italicized, and it would vitiate the semantics to force a font change on it.)

One way is to block-indent it, which is what most typesetting-teaching manuals do, but I guess you're saying Asciidoctor won't block-indent because it's a typesetting gesture, not a semantic one. I was looking for some combination of Asciidoctor's block and attributes mechanisms that might serve here. It doesn't have to be a block-indent.

(As a last resort, I could use some kind of explicit textual marker before and after.)