Definition of "difficultness" [dif•fi•cult•ness]

• The state or quality of being difficult. (noun)

Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License

• "The cause was her diva-like difficultness on the set and the producers weren't buying it."
• "That if it's difficult, she won't deal with the difficultness, and just gives up."
• "It would not be fair to say that the mouse temporarily ceased to profit by its experience; instead it profited even more than usually, in all probability, but the unavoidably abrupt increase in the difficultness of the tests was just sufficient to hide the improvement."