difficult (not easy to do or understand): It was a very difficult job. The exam questions were a bit difficult.
hard (difficult): That is a very hard task.
tough (very difficult to do or deal with): It is very tough to quit smoking.
challenging (difficult in a way that tests ability): My heart isn’t in this job; I’m searching for a more challenging one.
tricky (difficult in a way that requires care and skill): The equipment installation was kind of tricky.
awkward (difficult to do or handle): Tim dealt with an awkward situation very well.
demanding (needing a lot of time, energy, or attention): Bringing up her three children alone was a demanding task.
taxing (needing a lot of physical or mental effort): This is a very taxing job for her.
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