difficult

IPA: dˈɪfʌkʌɫt

Hard, not easy, requiring much effort.
(often of a person, or a horse, etc) Hard to manage, uncooperative, troublesome.
(obsolete) Unable or unwilling.

Examples of "difficult" in Sentences

Learning a new language can be difficult, but with practice, it becomes easier over time
Running a marathon is a difficult challenge that requires months of training and dedication
Finding a solution to the complex math problem proved to be more difficult than anticipated
Dealing with difficult customers can be exhausting and frustrating for customer service representatives
Climbing to the summit of the mountain was a difficult trek, but the breathtaking views made it all worth it