Engaged in unoriented study.    From Wordnet, Princeton University. 

Here am I marching up and down this terrace alone, unoriented.    From Wordnik.com.  [The Waves] Reference

Equivalently this is the space of all (unoriented) lines through the origin.    From Wordnik.com.  [Algebra] Reference

I recall just enough group theory from university that I sometimes think of PCs as being like a coset of 2 elements – the +1 version and the -1 version, which thus are an unoriented element.    From Wordnik.com.  [The Euro Team and the SWM Network « Climate Audit] Reference

All the leaders, all the officers, are confused and unoriented.    From Wordnik.com.  [Battle Studies] Reference

Open/unoriented amplitudes of this kind go back to Ooguri-Vafa 2000 (and Walcher 2007).    From Wordnik.com.  [The Reference Frame] Reference

"But we found that current does not flow nearly as easily perpendicular to the planes, or in unoriented material," Katz said.    From Wordnik.com.  [PhysOrg.com - latest science and technology news stories] Reference

The problem with PCs is not that they are signed, but that you don’t know the direction of the sign – it’s that they are essentially unoriented.    From Wordnik.com.  [Perverse PCs « Climate Audit] Reference

Steve’s comment: PCs are unoriented and I believe, in group-theoretic terms, would be a coset of the two oppositely-oriented forms in a quotient group.    From Wordnik.com.  [A Red Noise Spaghetti Diagram « Climate Audit] Reference

Strings themselves become unoriented.    From Wordnik.com.  [The Reference Frame] Reference