Adjective : a contentious crew. ,contentious issues.    From Dictionary.com. 

But the well gave up quantities of noncontentious matter before Mayhew's services were required.    From Wordnik.com.  [The Collectors] Reference

The Israel lobby went crazy, and Ricks and the Post backed down, alas (with Ricks saying drily that he was going to go back to a noncontentious issue: Iraq).    From Wordnik.com.  [Tom Ricks Doesn't Want to Be Called A Lefty (Jump In, Tom, the Water's Fine)] Reference

Tolerance obviously requires a noncontentious manner of relating toward one another's differences.    From Wordnik.com.  [Latest Articles] Reference

Can lxxiv equivocal humble banking business online to the noncontentious hellish conscript in it brevibloc, measurer, monstrance and penult.    From Wordnik.com.  [Rational Review] Reference

Cameroon's noncontentious, low-profile approach to foreign relations puts it squarely in the middle of other African and developing country states on major issues.    From Wordnik.com. Reference

The League was preached by President Wilson and by British statesmen in 1918 and 1919, not simply as an organization of international co-operation in noncontentious and humanitarian activities.    From Wordnik.com.  [The International Situation and the Protocol] Reference

Nevertheless, the change in tone of Russian-American relations has made possible achievements like the relatively noncontentious talks over nuclear arms reduction that now seem close to conclusion.    From Wordnik.com.  [NYT > Home Page] Reference