unprintable

Modifies a noun

• character: The processing of other unprintable characters by text streams is undefined.
• language: I stood by looking on in sad silence, whilst the keeper vented his rage in entirely unprintable language.
• item: JR: There are plans to generate special electronic editions of the SuperJournal titles which will include unprintable items.
• element: The participants were asked about the unprintable elements important in their work which might be included in electronic articles.

Modifying Another Word

• quite: I feel certain that most of their comments would be quite unprintable.
• probably: What he would think of Debenhams is probably unprintable!