There is another kind of unproblematic root, in which obstruents flank a resonant.
From the en.wikipedia.org
The placement of Realism under positivism is far from unproblematic however.
From the en.wikipedia.org
Livia's association with the Vestal Licinia is itself not unproblematic.
From the en.wikipedia.org
That in itself seems unproblematic, as Zanjani's sheep show no human tendencies whatsoever.
From the newscientist.com
This is generally unproblematic and exists in any liberal society.
From the forbes.com
Spain, which will vote first in February, should be unproblematic for the pro-constitution camp.
From the economist.com
Setting prices is not unproblematic in practice, particularly in Colombia where I am writing from.
From the economist.com
In this case it is unproblematic to defend the interest of the person or institution involved.
From the en.wikipedia.org
As I said, it's not unproblematic, but by following a Wikipedia-external standard, we avoid OR.
From the en.wikipedia.org
More examples
Elementary: easy and not involved or complicated; "an elementary problem in statistics"; "elementary, my dear Watson"; "a simple game"; "found an uncomplicated solution to the problem"