problematic
adjectivedifficult to deal with or to understand; full of problems; not certain to be successful 造成困难的；存在问题的 The situation is more problematic than we first thought. 这局面比我们最初想象的更难对付。 Which are the most problematic countries in the world for journalists? 对于记者来说，世界上最有问题的国家有哪些？
Oxford Collocations DictionaryProblematic is used with these nouns:- aspect
- nature
- situation
- …
Word Originearly 17th cent.: via French from late Latin problematicus, from Greek problēmatikos, from problēma, from proballein ‘put forth’, from pro ‘before’ + ballein ‘to throw’.