0 written but not yet published:
After his death, his daughter found an unpublished manuscript among his papers.
a collection of unpublished poems
1 not published or made available for people to see:
Unpublished European studies show significant reductions in all the cholesterol-clogging fats.
Bates (1999) makes the point in an unpublished paper that ethnic groups can be a form of social capital that supports investment and commerce.
To carry out these analyses we lent heavily on previously published material but many plots are from previously unpublished data.
Details of 66 deep wide-angle/refraction profiles from published and unpublished sources have been compiled.
A small number of manuscripts, though, did circulate unpublished among a small group of admirers.
Furthermore, the eye closure response to nerve injury was temporarily blocked by an analgesic dose of systemic morphine (unpublished observations).
They also circulated their (unpublished) commonplace books of poetry from approximately the year 1760 to 1840.
If the tract had been printed it would certainly have appeared anonymously, but as far as is known it remained unpublished.
The search for unpublished research should therefore be seen as a necessary but imperfect guard against publication bias.