If you look at the difference between something like
quick brown fox and
quickbrownfox, you might reasonably describe the first as being "spaced". While the second is, perhaps "unspaced" or "spaceless" ... doesn't sound too unreasonable... not great. You might think that had to do with spacing between the characters instead of the words (so more like "kerning").
But if you look at the difference between:
the lazy dog
the lazy dog, then is there a word for distinguishing the first case? "newlined"? "linebreaked"? "linebroken"?
Web programmers might say the second case comes from a distinction between the words being in "block-level elements" vs. "non block-level elements". So the first case would be "<div>ved" and the second "<span>ned" (?). Maybe they'd get it, but I doubt most people would know what that meant.
The fallback here is compounds like words-separated-by-spaces vs words-without-spacing vs words-separated-by-newlines. I'm just fishing for some possible terminology that could do it in fewer words, if it exists (from typography, or elsewhere?)